KR102406695B1 - Apparatus and method for transmitting and receiving data based on sound signal in wireless communication system - Google Patents

Abstract

The present invention relates to a technology for a sensor network, machine to machine (M2M) communication, machine type communication (MTC), and internet of things (IoT). The present invention can be applied to intelligent services (smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related services, etc.) based on the above technology.
The present invention provides a method for a transmitting device to transmit data based on a sound signal in a wireless communication system, comprising transmitting a sound packet corresponding to the transmitted data, wherein the sound packet includes at least includes one sound symbol, the sound symbol includes at least one sound sub-symbol, and the wireless communication system supports a plurality of sound symbol types; Each of the plurality of sound symbol types is characterized in that it is mapped with a preset data value.

Description

Apparatus and method for transmitting and receiving data based on a sound signal in a wireless communication system

The present invention relates to an apparatus and method for transmitting and receiving data in a wireless communication system, and more particularly, to an apparatus and method for transmitting and receiving data based on a sound signal in a wireless communication system.

The Internet is a human-centered connection network where humans generate and consume information, and an Internet of things (IoT, hereinafter referred to as “IoT”) network in which information is exchanged and processed between distributed components such as things. is evolving into Internet of everything (IoE) technology may be an example in which big data processing technology through connection with a cloud server, etc. are combined with IoT technology.

In order to implement the IoT, technological elements such as sensing technology, wired and wireless communication and network infrastructure, service interface technology and security technology are required, and recently, a sensor network for connection between objects, a machine to machine (machine to machine) M2M) communication: technologies such as "M2M communication") and MTC (machine type communication) are being studied.

In the IoT environment, intelligent IT (internet technology) services that create new values in human life by collecting and analyzing data generated from connected objects can be provided. IoT can be applied to fields such as smart home, smart building, smart city, smart car or connected car, smart grid, health care, smart home appliance, and advanced medical service through convergence and compounding between existing IT technology and various industries. have.

Based on the mobile communication network, the concept of M2M communication that supports intelligent communication between people and things and between things and things has expanded its scope to the Internet, and is a concept that interacts with all information in the real and virtual world as well as things. is evolving rapidly. In other words, M2M communication, which enables intelligent communication between people and things and between things and things in real time, safely and conveniently anytime, anywhere, is expanding its scope to IoT while connecting all surrounding things through the Internet.

The IoT refers to a technology for connecting to the Internet by embedding sensors and communication functions in various objects. Here, the object is various embedded systems (computer systems of electronic devices such as smart phones) such as home appliances, mobile devices, and wearable computers. The objects connected to the IoT must be connected to the Internet based on a unique Internet protocol (IP, hereinafter referred to as "IP") address that can distinguish the objects themselves, and obtain information from the external environment A sensor can be built in for

In particular, with the recent rapid development of IoT, a short-range communication method, for example, a short-range communication method such as a Bluetooth method, is receiving attention, and in particular, Bluetooth low energy (BLE, hereinafter “BLE”) ”) mode that supports Bluetooth mode is attracting attention. In general, since a user can control devices to which the BLE mode is applied using a mobile terminal, for example, a smart phone, the number of devices to which the BLE mode is applied is gradually increasing.

On the other hand, the above information is only presented as background information to help the understanding of the present invention. No determination has been made, nor is any claim made as to whether any of the above is applicable as prior art to the present invention.

An embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal in consideration of space in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal in consideration of a distance in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal, improving security performance in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal, which differentiates reception performance according to space in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal, which differentiates reception performance according to distance in a wireless communication system.

The method proposed in one embodiment of the present invention is; A method for a transmission device to transmit data based on a sound signal in a wireless communication system, the method comprising: transmitting a sound packet corresponding to transmission data, wherein the sound packet includes at least one sound includes a sound symbol, the sound symbol includes at least one sound sub-symbol, and the wireless communication system supports a plurality of sound symbol types, and the plurality of sounds Each of the symbol types is characterized in that it is mapped with a preset data value.

Another method proposed in an embodiment of the present invention is; A method for a receiving device to receive data based on a sound signal in a wireless communication system, the method comprising: receiving a sound packet corresponding to transmission data, wherein the sound packet includes at least one sound includes a sound symbol, the sound symbol includes at least one sound sub-symbol, and the wireless communication system supports a plurality of sound symbol types, and the plurality of sounds Each of the symbol types is characterized in that it is mapped with a preset data value.

An apparatus proposed in an embodiment of the present invention includes; A transmitting device in a wireless communication system, comprising: a transceiver for transmitting a sound packet corresponding to transmission data, the sound packet including at least one sound symbol, the sound symbol comprising at least includes one sound sub-symbol, the wireless communication system supports a plurality of sound symbol types, and each of the plurality of sound symbol types is mapped to a preset data value. characterized.

Another device proposed in an embodiment of the present invention is; A receiving device in a wireless communication system, comprising: a transceiver for receiving a sound packet corresponding to transmission data, the sound packet including at least one sound symbol, the sound symbol comprising at least includes one sound sub-symbol, the wireless communication system supports a plurality of sound symbol types, and each of the plurality of sound symbol types is mapped to a preset data value. characterized.

Other aspects, advantages and key features of the present invention will become apparent to those skilled in the art from the following detailed description, taken in conjunction with the accompanying drawings, which discloses preferred embodiments of the present invention.

Before processing the detailed description part of the present disclosure, it may be effective to establish definitions for specific words and phrases used throughout this patent document: the terms “include” and “ “comprise” and its derivatives mean inclusive indefinitely; the term “or” is inclusive and means “and/or”; The phrases “associated with” and “associated therewith” and their derivatives include, be included within, and interconnect with ( interconnect with, contain, be contained within, connect to or with, couple to or with ), be communicable with, cooperate with, interleave, juxtapose, be proximate to, and likely to means to be bound to or with, to have, to have a property of, etc.; The term “controller” means any device, system, or part thereof that controls at least one operation, such a device being hardware, firmware or software, or some combination of at least two of the hardware, firmware or software. can be implemented in It should be noted that the functionality associated with any particular controller may be centralized or distributed, and may be local or remote. Definitions for specific words and phrases are provided throughout this patent document, and those of ordinary skill in the art will in many, if not most cases, apply such definitions to conventional as well as conventional, as well as to words and phrases defined above. It should be understood that this also applies to future uses of the phrases.

An embodiment of the present invention has an effect of enabling transmission and reception of data based on a sound signal in a wireless communication system.

In addition, an embodiment of the present invention has an effect of enabling data transmission and reception based on a sound signal in consideration of space in a wireless communication system.

In addition, an embodiment of the present invention has an effect of enabling transmission and reception of data based on a sound signal in consideration of a distance in a wireless communication system.

In addition, an embodiment of the present invention has an effect of enabling transmission and reception of data based on a sound signal, which improves security performance in a wireless communication system.

In addition, an embodiment of the present invention has an effect of making it possible to transmit and receive data based on a sound signal, which differentiates reception performance according to space in a wireless communication system.

In addition, an embodiment of the present invention has an effect of making it possible to transmit and receive data based on a sound signal, which differentiates reception performance according to distance in a wireless communication system.

Other aspects, features and benefits as set forth above of certain preferred embodiments of the invention will become more apparent from the following description taken in conjunction with the accompanying drawings:
1 is a diagram schematically illustrating a process of transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention;
2 is a diagram schematically illustrating a process of differentiating transmission performance and reception performance according to a distance based on a sound signal in a wireless communication system according to an embodiment of the present invention;
3 is a diagram schematically illustrating a sound signal transmission process for data transmission in a wireless communication system according to an embodiment of the present invention;
4 is a diagram schematically illustrating data reception performance according to distance in a wireless communication system according to an embodiment of the present invention;
5 is a diagram schematically illustrating a process of dividing a space by changing a sound symbol length in a wireless communication system according to an embodiment of the present invention;
6 is a diagram schematically illustrating a process of changing a sound symbol length in a wireless communication system according to an embodiment of the present invention;
7 is a diagram schematically illustrating an example of a process of generating a sound packet in a wireless communication system according to an embodiment of the present invention;
8 is a diagram schematically illustrating a process of dividing a space by changing a volume of a sound symbol in a wireless communication system according to an embodiment of the present invention;
9 is a diagram schematically illustrating another example of a process of generating a sound packet in a wireless communication system according to an embodiment of the present invention;
10 is a diagram schematically illustrating a process of dividing a space by measuring a distance based on a 2-way sound signal in a wireless communication system according to an embodiment of the present invention;
11 is a diagram schematically illustrating another example of a process of generating a sound packet in a wireless communication system according to an embodiment of the present invention;
12A and 12B are diagrams schematically illustrating an example of a process of setting a reception space based on the directionality of a sound signal and a noise cancellation method in a wireless communication system according to an embodiment of the present invention;
13A and 13B are diagrams schematically illustrating another example of a process of setting a reception space based on the directionality of a sound signal and a noise cancellation method in a wireless communication system according to an embodiment of the present invention;
14 is a diagram schematically illustrating a process of detecting a direction of a device based on a reception time difference in a wireless communication system according to an embodiment of the present invention;
15 is a diagram schematically illustrating an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
16 is a schematic diagram of an example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention of FIG. 15 is applied It is a signal flow diagram shown as;
17 schematically illustrates another example of a signal transmission and reception process according to an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention of FIG. 15 is applied; It is a signal flow diagram shown as;
18 is another example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention of FIG. 15 is applied. It is a schematic signal flow diagram;
19 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
20 schematically illustrates an example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention. is a drawing;
21 schematically illustrates another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention. is a drawing;
22 schematically illustrates another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention One signal flow diagram is;
23 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
24 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
25 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
26 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
27 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
28 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
29 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
30 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention;
31A and 31B are diagrams schematically illustrating a process of automatically setting up an AP connection based on a discovery packet in a wireless communication system according to an embodiment of the present invention;
32A and 32B are diagrams schematically illustrating a process of performing a P2P automatic pairing operation based on a discovery packet in a wireless communication system according to an embodiment of the present invention;
33 is a diagram schematically illustrating an example of an internal structure of a transmitting device in a wireless communication system according to an embodiment of the present invention;
34 is a diagram schematically illustrating an example of an internal structure of a receiving device in a wireless communication system according to an embodiment of the present invention;
35 is a diagram schematically illustrating another example of an internal structure of a transmitting device in a wireless communication system according to an embodiment of the present invention;
36 is a diagram schematically illustrating another example of an internal structure of a receiving device in a wireless communication system according to an embodiment of the present invention;
37 is a diagram schematically illustrating an internal structure of an AP in a wireless communication system according to an embodiment of the present invention.
It should be noted that throughout the drawings, like reference numerals are used to denote the same or similar elements, features, and structures.

BRIEF DESCRIPTION OF THE DRAWINGS The following detailed description with reference to the appended drawings will assist in a comprehensive understanding of various embodiments of the present disclosure, which are defined by the claims and their equivalents. While the following detailed description contains various specific details for the purpose of understanding it, these will be regarded as merely examples. Accordingly, those skilled in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and configurations may be omitted for clarity and conciseness.

The terms and words used in the following detailed description and claims are not limited to the literal meaning, but are merely used to enable a clear and consistent understanding of the present disclosure by the inventor. Accordingly, for those skilled in the art, the following detailed description of various embodiments of the present disclosure is provided for illustrative purposes only, and defines the present disclosure as defined by the appended claims and their equivalents. It should be clear that it is not provided to do so.

In addition, it will be understood that singular expressions such as "above" and "above" include plural expressions in this specification, unless otherwise clearly indicated. Thus, as an example, a “component surface” includes one or more component representations.

Also, terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, the terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be understood to have a meaning consistent with the meaning in the context of the related art.

According to various embodiments of the present disclosure, an electronic device may include a communication function. For example, the electronic device includes a smart phone, a tablet personal computer (PC, hereinafter referred to as 'PC'), a mobile phone, a video phone, and an e-book reader (e -book reader), desktop PC, laptop PC, netbook PC, personal digital assistant (PDA, hereinafter referred to as 'PDA') and portable A portable multimedia player (PMP, hereinafter referred to as 'PMP'), an mp3 player, a mobile medical device, a camera, and a wearable device (eg, a head-mounted device) A device (head-mounted device: HMD, for example, will be referred to as 'HMD'), electronic clothing, an electronic bracelet, an electronic necklace, an electronic accessory, an electronic tattoo, or a smart watch ), and so on.

According to various embodiments of the present disclosure, the electronic device may be a smart home appliance having a communication function. For example, the smart home device includes a TV, a digital video disk (DVD, hereinafter referred to as 'DVD') player, audio, a refrigerator, an air conditioner, a vacuum cleaner, an oven, A microwave oven, a washer, a dryer, an air purifier, a set-top box, a TV box (eg, Samsung HomeSync ^TM , Apple TV ^TM , or Google TV ^TM ), and a game console (gaming console), electronic dictionary, camcorder, electronic photo frame, and the like.

According to various embodiments of the present disclosure, an electronic device includes a medical device (eg, a magnetic resonance angiography (MRA)) device, a magnetic resonance imaging (MRA) device, and a magnetic resonance imaging (MRA) device. : MRI, hereinafter referred to as “MRI”), computed tomography (CT, hereinafter referred to as 'CT') device, imaging device, or ultrasound device), and a navigation device; , a global positioning system (GPS, hereinafter referred to as 'GPS') receiver, an event data recorder (EDR, hereinafter referred to as 'EDR'), and a flight data recorder (hereinafter referred to as 'EDR') recorder: FDR, hereinafter referred to as 'FER'), an automotive infotainment device, a navigation electronic device (eg, a navigation navigation device, a gyroscope, or a compass), and an avionics device It can be a security device, an industrial or consumer robot, and the like.

According to various embodiments of the present invention, an electronic device includes furniture, a part of a building/structure, an electronic board, an electronic signature receiving device, a projector, and various measurement devices (eg, water, electricity, gas or electromagnetic wave measuring devices), etc.

According to various embodiments of the present invention, the electronic device may be a combination of devices as described above. In addition, it will be apparent to those skilled in the art that the electronic device according to preferred embodiments of the present invention is not limited to the device described above.

According to various embodiments of the present disclosure, the transmitting device and the receiving device may be, for example, electronic devices.

An embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal in consideration of space in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal in consideration of a distance in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal, improving security performance in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal, which differentiates reception performance according to space in a wireless communication system.

In addition, an embodiment of the present invention proposes an apparatus and method for transmitting and receiving data based on a sound signal, which differentiates reception performance according to distance in a wireless communication system.

On the other hand, the apparatus and method proposed in an embodiment of the present invention include a long-term evolution (LTE, hereinafter referred to as "LTE") mobile communication system and a long-term evolution-advanced (long-term evolution) -Advanced: LTE-A, hereinafter referred to as "LTE-A") a mobile communication system, and a licensed-assisted access (LAA, hereinafter referred to as "LAA")-LTE mobile communication system; , high speed downlink packet access (HSDPA, hereinafter referred to as "HSDPA") mobile communication system and high speed uplink packet access (HSUPA, hereinafter referred to as "HSUPA") The mobile communication system and the 3rd generation project partnership 2 (3rd generation partnership project 2: 3GPP2, hereinafter referred to as "3GPP2") of high rate packet data (high rate packet data: HRPD, hereinafter referred to as "HRPD") A mobile communication system, a 3GPP2 wideband code division multiple access (WCDMA, hereinafter referred to as "WCDMA") mobile communication system, and a 3GPP2 code division multiple access (CDMA) , hereinafter referred to as "CDMA") mobile communication system, the International Institute of Electrical and Electronics Engineers (IEEE, hereinafter referred to as "IEEE") 802.16m communication system, and IEEE 802.16e communication system and an evolved packet system (EPS, hereinafter referred to as "EPS"), and a mobile Internet protocol (mobile internet protocol: Mobile IP, hereinafter referred to as "Mobile IP") system, digital multimedia broadcasting (hereinafter referred to as "DMB") service, and digital video broadcasting-handheld: DVP-H, hereinafter referred to as "DVP-H"), and the Mobile/Portable Advanced Television Systems Committee-mobile/handheld (ATSC-M/H, hereinafter referred to as "ATSC-M/H") Mobile broadcasting services such as service, etc., and digital video broadcasting systems such as Internet protocol television (IPTV, hereinafter referred to as "IPTV") services, and MPEG media transport (moving picture experts group ( MPEG) media transport: MMT, hereinafter referred to as "MMT") is applicable to various communication systems, such as a system.

Recently, with the rapid development of the Internet of things (IoT, hereinafter referred to as "IoT"), a short-range communication method, for example, a short-range communication method such as a Bluetooth method, is attracting attention. , in particular, a Bluetooth method that supports a Bluetooth low energy (BLE, hereinafter referred to as “BLE”) mode is attracting attention. In general, since a user can control devices to which the BLE mode is applied using a mobile terminal, for example, a smart phone, the number of devices to which the BLE mode is applied is gradually increasing.

In this way, as the number of devices to which the BLE mode is applied increases, there is a demand for transmitting and receiving data in consideration of the divided spaces after dividing the space based on the distance. The detailed explanation of these requirements is as follows.

(1) In a wireless communication system, the demand for a beacon signal is increasing, and accordingly, the importance of checking whether a device exists in the same space as other devices is being emphasized.

(2) Transmission and reception of authentication codes and security codes for the authentication process and security process between devices are important in a wireless communication system. Therefore, when considering these authentication processes and security processes, it is important to divide spaces based on distance can do.

(3) In a wireless communication system, there is a need for devices that transmit and receive data to be limited only to devices that exist in the same space.

(4) In a wireless communication system, there may be cases where it is necessary to differentiate reception performance according to distance even for devices that exist in the same space. .

As described above, for various reasons, there is a need for a method that enables the wireless communication system to check whether corresponding devices exist in the same space and perform differentiated data transmission and reception operations according to distance. is being discussed

Accordingly, an embodiment of the present invention proposes a method of checking whether corresponding devices exist in the same space based on a sound signal.

In addition, an embodiment of the present invention proposes a method of transmitting and receiving data, for example, a personal identification number (PIN, hereinafter referred to as "PIN") code based on a sound signal.

In addition, an embodiment of the present invention proposes a method of differentiating transmission performance and reception performance according to a distance between devices based on a sound signal.

In addition, an embodiment of the present invention proposes a method of measuring a distance between devices based on a sound signal.

Hereinafter, a process of transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention will be described with reference to FIG. 1 .

1 is a diagram schematically illustrating a process of transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 1 , in the wireless communication system, a first device, for example, a TV 110 transmits data based on a sound signal to a second device, for example, a smart phone 120 ( step 111). Here, based on the sound signal, the smart phone 120 may detect whether the smart phone 120 itself exists in the same space as the TV 110 , and the TV 110 receives the sound signal. Various data can be transmitted based on

In FIG. 1, a process of transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 2, a wireless communication system according to an embodiment of the present invention A process of differentiating transmission performance and reception performance according to distance based on a sound signal will be described.

2 is a diagram schematically illustrating a process of differentiating transmission performance and reception performance according to a distance based on a sound signal in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 2 , first, the short distance indicates a distance equal to or less than a preset first threshold distance from the first device, for example, the smart phone 210 , and the intermediate distance indicates the distance from the smart phone 210 is the distance from the smart phone 210 . A distance that exceeds the first threshold distance and is less than or equal to a preset second threshold distance indicates a distance, and a far distance indicates a distance at which a distance from the smart phone 210 exceeds the second threshold distance. Here, each of the first threshold distance and the second threshold distance may be set appropriately for the situation of the smart phone 210 or may be set appropriately for the situation of the wireless communication system, and a detailed description thereof will be omitted. decide to do

The first device, for example, the smart phone 210 transmits data based on a sound signal so that only devices existing in the vicinity of the smart phone 210 can receive the data transmitted by the smart phone 210 . can do. In FIG. 2 , it is assumed that the second device 220 exists in a short distance from the smart phone 210 , and accordingly, the second device 220 may receive data transmitted from the smart phone 210 .

Meanwhile, it is assumed that the third device 230 is remote from the smart phone 210 . Accordingly, the third device 230 cannot receive the data transmitted from the smart phone 210 .

In FIG. 2, a process of differentiating transmission performance and reception performance according to a distance based on a sound signal in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 3, an embodiment of the present invention A sound transmission process for data transmission in a wireless communication system according to the present invention will be described.

3 is a diagram schematically illustrating a sound signal transmission process for data transmission in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 3 , first, when it is assumed that there are a total of N+1 data values that can be supported in the wireless communication system, for example, mapping values, the types of sound symbols are The number must also be a total of N+1. For example, if it is assumed that the number of mapping values that can be supported in the wireless communication system is N+1 as shown in FIG. 3 , the sound symbol types must also be N+1. For example, symbol type a is mapped to mapping value digit 0, symbol type b is mapped to mapping value digit 1, symbol type c is mapped to mapping value digit 2, and symbol type d to mapping value digit N is mapped

Meanwhile, a sound symbol indicates a minimum unit of data transmission used in the wireless communication system, and one sound symbol includes a plurality of sound sub-symbols. Here, the type of the sound symbol may be expressed as a combination of sub-symbols included in the sound symbol. In addition, the sub-symbol may be a specific waveform that is the smallest unit that the receiving device can receive and detect on the time axis.

In addition, a sound packet includes a plurality of sound symbols. For example, when the transmitting device wants to transmit its own PIN code, the transmitting device can transmit its own PIN code through the sound packet. .

For example, as shown in FIG. 3 , when the PIN code of the transmitting device is 00201 ... N2, the transmitting device transmits a sound packet such as aacab ... dc to transmit its own PIN code. can

As described above, since the transmitting device transmits data based on the sound signal, only receiving devices existing in the same space as the transmitting device can receive the data transmitted by the transmitting device.

In addition, the data transmission capability of the corresponding transmission device increases according to the number of types of sound symbols that can be supported, and the data reception capability of the corresponding reception device also increases.

In FIG. 3, a sound signal transmission process for data transmission in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 4, according to a distance in a wireless communication system according to an embodiment of the present invention. The data reception performance will be described.

4 is a diagram schematically illustrating data reception performance according to distance in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 4 , first, the receiving device receives a sound signal through a microphone (step 411), and detects sound sub-symbols based on the sound signal received through the microphone (step 413). The receiving device reconstructs a sound symbol based on the detected sound sub-symbols (step 415), and detects a mapping value based on the generated sound symbol (step 417).

After detecting data corresponding to the sound packet based on the detected mapping value (step 419), the receiving device checks the validity of the data (step 421). Here, the validity of the data may be checked through a cyclic redundancy check (CRC, hereinafter referred to as “CRC”) procedure or a feedback procedure, and the CRC procedure and the feedback procedure A detailed description will be omitted.

In FIG. 4, data reception performance according to distance has been described in the wireless communication system according to an embodiment of the present invention. Next, with reference to FIG. 5, the sound sub-symbol length is calculated in the wireless communication system according to an embodiment of the present invention. The process of dividing a space by changing it will be explained.

5 is a diagram schematically illustrating a process of dividing a space by changing a sound sub-symbol length in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 5 , first, the sound sub-symbol length has a correlation with the data reception distance, which is a distance at which a receiving device can receive a sound sub-symbol transmitted from a transmitting device. The shorter the sound sub-symbol length, the shorter the data reception distance. Conversely, the longer the sound sub-symbol length, the longer the data reception distance.

In FIG. 5 , it is assumed that three sound sub-symbol lengths, for example, a first sound sub-symbol length, a second sound sub-symbol length, and a third sound sub-symbol length, are supported in the wireless communication system as an example.

The first sound sub-symbol length indicates a sound sub-symbol length capable of being received only by a receiving device existing in a short distance from the transmitting device. Here, the short-range refers to, for example, a distance in which a distance from the transmitting device is less than or equal to a preset first threshold distance.

The second sound sub-symbol length indicates a sound sub-symbol length capable of being received only by a receiving device existing at an intermediate distance from the transmitting device. Here, the intermediate distance represents, for example, a distance in which a distance from the transmitting device exceeds the first threshold distance and is less than or equal to a preset second threshold distance.

The third sound sub-symbol length indicates a sound sub-symbol length capable of being received only by a receiving device located far from the transmitting device. Here, the far distance represents, for example, a distance in which a distance from the transmitting device exceeds the second threshold distance.

Meanwhile, the parameter determining the length of the sound sub-symbol may be the number of sub-symbols included in the sound sub-symbol or the length of sub-symbols included in the sound sub-symbol.

In FIG. 5, a process of dividing a space by changing a sound sub-symbol length in a wireless communication system according to an embodiment of the present invention has been described. Next, referring to FIG. 6, a wireless communication system according to an embodiment of the present invention A process for changing the sound symbol length will be described.

6 is a diagram schematically illustrating a process of changing a sound symbol length in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 6 , first, an original sound symbol 611 includes a plurality of, for example, M sound sub-symbols, for example, sound sub-symbol #0 to sound sub-symbol #M-1.

Accordingly, in order to shorten the length of the original sound symbol 611, the number of sound sub-symbols included in the original sound symbol 611 is reduced. For example, the original sound symbol 611 includes a total of M sound sub-symbols. In order to shorten the length of the original sound symbol 611, the original sound symbol 611 includes less than M sound sub-symbols. include it. 6 shows a sound symbol 613 including a total of L sound sub-symbols, for example, sound sub-symbol #0 to sound sub-symbol #L-1.

In addition, in order to shorten the length of the original sound symbol 611 as described above, in addition to reducing the number of sound sub-symbols included in the original sound symbol 611, the original sound symbol 611 is included. It is also possible to reduce the length of the sound sub-symbols. For example, the original sound symbol 611 includes a total of M sound sub-symbols each having a length of P. To shorten the length of the original sound symbol 611, the original sound symbol 611 is included. The length of the sound sub-symbols to be used may be shorter than P. 6 shows a sound symbol 615 including a total of M sound sub-symbols having a length shorter than P.

In FIG. 6, a process of changing a sound symbol length in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 7, a sound packet is generated in the wireless communication system according to an embodiment of the present invention. An example of the process will be described.

7 is a diagram schematically illustrating an example of a process of generating a sound packet in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 7 , first, a first device, for example, a smart phone 710 may transmit a short-range sound packet so that only devices existing in a short distance to the smart phone 710 can receive data. Here, the short distance may be set according to the situation of the smart phone 710 or may be set according to the situation of the wireless communication system, and a detailed description thereof will be omitted. In FIG. 7 , it is assumed that the second device 720 exists in a short distance from the smart phone 710 , so that the second device 720 receives the short-range sound packet transmitted from the smart phone 710 . Therefore, it is possible to extract data corresponding to the near-field sound packet.

On the other hand, since the third device 730 is far from the smart phone 710, the third device 730 cannot receive the short-range sound packet transmitted from the smart phone 710, and thus the near-field sound Data corresponding to the packet cannot be extracted.

On the other hand, the smart phone 710 may transmit a remote sound packet so that data transmitted from the smart phone 710 can be received even with data that exists at a remote distance from the smart phone 710 . Here, the remote distance may be set according to the situation of the smart phone 710 or may be set according to the situation of the wireless communication system, and a detailed description thereof will be omitted. Accordingly, both the second device 720 and the third device 730 may receive the far-field sound packet transmitted from the smart phone 710, and thus extract data corresponding to the far-end sound packet. .

In FIG. 7, an example of a process of generating a sound packet in a wireless communication system according to an embodiment of the present invention has been described. Next, referring to FIG. 8, a sound sub in a wireless communication system according to an embodiment of the present invention has been described. A process of dividing a space by changing the volume of a symbol will be described.

8 is a diagram schematically illustrating a process of dividing a space by changing a volume of a sound sub-symbol in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 8 , first, the volume of a sound sub-symbol has a correlation with a data reception distance, which is a distance at which a receiving device can receive a sound sub-symbol transmitted from a transmitting device. For example, as the volume of the sound sub-symbol increases, the data reception distance becomes longer. Conversely, as the volume of the sound sub-symbol decreases, the data reception distance becomes shorter.

In FIG. 8 , it is assumed that three sound sub-symbol volumes, for example, a first sound sub-symbol volume, a second sound sub-symbol volume, and a third sound sub-symbol volume, are supported in the wireless communication system as an example.

The first sound sub-symbol volume represents a sound sub-symbol volume capable of receiving only receiving devices existing in a short distance from the transmitting device. Here, the short distance represents, for example, a distance in which the distance from the transmitting device is less than or equal to a preset first threshold distance.

The second sound sub-symbol volume represents a sound sub-symbol volume capable of being received only by receiving devices existing at a medium distance from the transmitting device. Here, the intermediate distance represents, for example, a distance in which a distance from the transmitting device exceeds the first threshold distance and is less than or equal to a preset second threshold distance.

The third sound sub-symbol volume represents a sound sub-symbol volume capable of being received only by receiving devices that exist far from the transmitting device. Here, the far distance represents, for example, a distance in which a distance from the transmitting device exceeds the second threshold distance.

In FIG. 8, a process of dividing a space by changing a sound sub-symbol volume in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 9, a wireless communication system according to an embodiment of the present invention Another example of the process of generating a sound packet in .

9 is a diagram schematically illustrating another example of a process of generating a sound packet in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 9 , a first device, for example, a smart phone 910 may transmit a short-range sound packet so that only devices existing in a short distance can receive data from the smart phone 910 . Here, the short distance may be set according to the situation of the smart phone 910 or may be set according to the situation of the wireless communication system, and a detailed description thereof will be omitted. In FIG. 9 , it is assumed that the second device 920 exists in a short distance from the smart phone 910 . Therefore, the second device 920 may receive the short-range sound packet transmitted from the smart phone 910 . Therefore, it is possible to extract data corresponding to the near-field sound packet.

On the other hand, since the third device 930 is far from the smart phone 910, it cannot receive the short-range sound packet transmitted from the smart phone 910, and thus data corresponding to the near-field sound packet cannot be extracted. can't

Meanwhile, the smart phone 910 may transmit a far-field sound packet so that devices located far away from the smart phone 910 may also receive data. Here, the remote distance may be set according to the situation of the smart phone 910 or may be set according to the situation of the wireless communication system, and a detailed description thereof will be omitted. Accordingly, both the second device 920 and the third device 930 may receive the far-field sound packet transmitted from the smart phone 910, and thus extract data corresponding to the far-end sound packet. .

In FIG. 9, another example of a process of generating a sound packet in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 10, in a wireless communication system according to an embodiment of the present invention, 2- The process of dividing space by measuring the distance based on the way sound signal will be described.

10 is a diagram schematically illustrating a process of dividing a space by measuring a distance based on a 2-way sound signal in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 10 , two devices, for example, a first device, for example, a smart phone 1011 and a second device 1013 may both transmit a sound signal, and the smart phone 1011 and the second device 1011 may transmit a sound signal. All of the devices 1013 may receive a sound signal.

On the other hand, a sound signal is transmitted through a speaker and received through a microphone. Accordingly, when the second device 1013 receives the first sound signal transmitted from the smart phone 1011 , it takes a certain amount of time due to a difference in installation positions of the speaker and the microphone. For example, the smart phone 1011 receives the first sound signal transmitted at time t11 at time t12, and the second device 1013 receives the second sound signal transmitted at time t21 at time t22. In this case, the time interval between transmitting and receiving the first sound signal by the smart phone 1011 is R1, and the time interval between transmitting and receiving the second sound signal by the second device 1013 is R2.

Thereafter, the smart phone 1011 receives a second sound signal at a time t13 , and the second device 1013 receives a first sound signal at a time t23 . Accordingly, the smart phone 1011 transmits the first sound signal to receive the second sound signal D1 (=t13-t12+R1), the time difference D1 (=t13-t12+R1), and the second device 1013 provides the second sound signal A time difference D2 (=t23-t22+R2) between transmitting the signal and receiving the first sound signal can be calculated. At this time, the smart phone 1011 detects the times t12 and t13 based on the recording data for the first sound signal and the second sound signal, and detects R1 based on the distance between the speaker and the microphone. have. Alternatively, the smart phone 1011 may directly measure t11 and t13.

Here, the sum of D1 and D2 is equal to a round trip delay time (RTT, hereinafter referred to as “RTT”) of a sound signal between the smart phone 1011 and the second device 1013 . In general, RTT is between two devices when a specific device transmits a first signal and the other device transmits a second signal immediately after receiving the first signal. It may be defined as a difference between a transmission time and a reception time of the second signal.

In Fig. 10, since the second sound signal is not transmitted after reception of the first sound signal, the time interval between t11 and t13 is different from the RTT. However, compared to the general RTT measurement environment, the second sound signal is transmitted ahead by D2. Accordingly, by adding D1 and D2, the same value as the RTT assuming that the second sound signal is transmitted after reception of the first sound signal in the second device 1013 may be obtained. Accordingly, the distance can be measured by dividing the sum of D1 and D2 by 2 to calculate a propagation delay time of the sound signal, and dividing the propagation delay time by the speed VS of the sound signal.

In FIG. 10, a process of dividing a space by measuring a distance based on a 2-way sound signal in a wireless communication system according to an embodiment of the present invention has been described. Next, referring to FIG. 11, an embodiment of the present invention Another example of a process for generating a sound packet in a wireless communication system according to the present invention will be described.

11 is a diagram schematically illustrating another example of a process of generating a sound packet in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 11 , first, the second device 1113 explicitly measures the distance between the second device 1113 and the first device, for example, a smart phone 1111, and the explicitly measured, When the distance between the second device 1113 and the smart phone 1111 is less than a preset distance, the second device 1113 may receive a sound packet transmitted from the smart phone 1111, and thus Data corresponding to the sound packet may be extracted. For convenience of explanation, it should be noted that, among sound packets transmitted from the smart phone 1111 , a sound packet that can be received by the second device 1113 is illustrated as a “near-field sound packet” in FIG. 11 .

Meanwhile, the third device 1115 also explicitly measures the distance between the third device 1115 and the smart phone 1111 , and the explicitly measured distance between the third device 1115 and the smart phone 1111 . When is less than the set distance, the sound packet transmitted from the smart phone 1111 may be received. However, in FIG. 11 , since the distance between the third device 1115 and the smart phone 1111 is greater than or equal to the set distance, the third device 1115 cannot receive the sound packet transmitted from the smart phone 1111 . There is no such thing, and therefore data corresponding to the sound packet cannot be extracted.

In FIG. 11 , the method in which the second device 1113 and the third device 1115 detect the distance from the smart phone 1111 is the same as that described in FIG. 10 , and thus a detailed description thereof will be omitted. .

In FIG. 11, another example of a process of generating a sound packet in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIGS. 12A and 12B, wireless communication according to an embodiment of the present invention An example of a process of setting a reception space in a system based on the directionality of a sound signal and a noise cancellation method will be described.

12A and 12B are diagrams schematically illustrating an example of a process of setting a reception space based on the directionality of a sound signal and a noise cancellation method in a wireless communication system according to an embodiment of the present invention.

12A and 12B , the transmitting device may provide directionality to sound signals using a plurality of speakers. 12A and 12B illustrate a case in which the transmitting device provides directionality to sound signals using, for example, four speakers.

In this way, as the directionality is given, a sound signal that does not have the same direction as the original sound signal acts as an inverted sound signal with respect to the original sound signal, and therefore based on an active noise cancellation method can be removed with For example, as shown in FIG. 12B , when signals having opposite phases are radiated to different speaker arrays in different directions, the corresponding signals are canceled in an area where the signals are received together, so that data can be received. It is not possible, and data of each of the corresponding signals can be extracted from a region other than the region.

Accordingly, in FIGS. 12A and 12B , a reception space in which data can be extracted and a reception space in which data cannot be extracted are set based on the directionality applied to the sound signal.

12A and 12B have been described with respect to an example of a process of setting a reception space based on the directionality of a sound signal and a noise cancellation method in a wireless communication system according to an embodiment of the present invention. Next, FIGS. 13A and 13B Another example of a process of setting a reception space based on the directionality of a sound signal and a noise cancellation method in a wireless communication system according to an embodiment of the present invention will be described with reference to .

13A and 13B are diagrams schematically illustrating another example of a process of setting a reception space based on the directionality of a sound signal and a noise cancellation method in a wireless communication system according to an embodiment of the present invention.

13A and 13B , the transmitting device may provide directionality to sound signals using a plurality of speakers. 13A and 13B illustrate a case in which the transmitting device provides directionality to sound signals using, for example, four speakers.

In this way, as the directionality is given, a sound signal that does not have the same direction as the original sound signal acts as an inverted sound signal with respect to the original sound signal, and thus can be removed based on the active noise cancellation method.

Accordingly, in FIGS. 13A and 13B , a reception space in which data can be extracted and a reception space in which data cannot be extracted are set based on the directionality applied to the sound signal. In particular, in FIGS. 13A and 13B, a reception space setting based on three-dimensional targeting (hereinafter referred to as “targeting”) is shown, and a reception capable of extracting data based on the three-dimensional targeting A receiving space from which it is impossible to extract space and data is established.

13A and 13B have been described with respect to another example of a process of setting a reception space based on the directionality of a sound signal and a noise removal method in a wireless communication system according to an embodiment of the present invention, and then with reference to FIG. 14 A process for detecting a direction of a device based on a reception time difference in a wireless communication system according to an embodiment of the present invention will be described.

14 is a diagram schematically illustrating a process of detecting a direction of a device based on a reception time difference in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 14 , a transmitter, for example, a TV 1411, transmits two signals, for example, a signal #1 and a signal #2. Here, it is assumed that the signal #1 is transmitted in the TX1 direction, and the signal #2 is transmitted in the TX2 direction.

Then, the receiver, for example, the speaker 1413 receives the signals transmitted from the TV 1411, that is, the signal #1 and the signal #2. It is assumed that the time when the speaker 1413 receives the signal #1 is t1, and it is assumed that the time when the speaker 1413 receives the signal #2 is t2, the difference between t1 and t2 It is assumed that d is d (d = t2 - t1).

Accordingly, when the difference d exceeds the preset threshold value m (d > m), the speaker 1413 determines that the speaker 1413 itself is closer to the TX2 direction than the TX1 direction. . Here, the threshold value m is a value determined in consideration of a preset margin, and a detailed description of the margin will be omitted.

On the other hand, when the difference d is less than the threshold value m (d < m), the speaker 1413 determines that the speaker 1413 itself is closer to the TX1 direction than the TX2 direction.

In FIG. 14, a process of detecting a direction of a device based on a reception time difference in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 15, wireless communication according to an embodiment of the present invention An example of an operation scenario to which a process of transmitting and receiving data based on a sound signal in a system is applied will be described.

15 is a diagram schematically illustrating an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 15 , an example of an operation scenario to which a process of transmitting and receiving data based on a sound signal shown in FIG. 15 is applied is first accessed through a peripheral device when a new device is powered on. It should be noted that this is an operation scenario of automatically connecting to an access point (AP, hereinafter referred to as "AP"). Hereinafter, for convenience of description, the new device will be referred to as an out of box (OOB) device, and the OOB device includes a speaker.

First, when the OOB device 1501 is powered on (step 1511), the OOB device 1501 transmits a sound signal corresponding to a randomly generated PIN code (step 1513). Accordingly, the reception device 1503 existing in the same space as the OOB device 1501 may receive the sound signal transmitted from the OOB device 1501 . In FIG. 15 , it is assumed that the receiving device 1503 is a smart phone as an example. The smart phone 1503 detects the PIN code of the OOB device 1501 based on the received sound signal, and transmits the PIN code detected by the smart phone 1503 to the OOB device 1501 in the BLE mode. transmit (step 1515).

Then, the OOB device 1501 transmits wireless fidelity (Wi-Fi, hereinafter referred to as “Wi-Fi”) connection information to the smart phone 1503 existing in the same space as the OOB device 1501 . request (step 1517). Then, the smart phone 1503 transmits the Wi-Fi connection information stored in the smart phone 1503 to the OOB device 1501 (step 1519). The OOB device 1501 performs a connection operation with the AP 1505 based on the Wi-Fi connection information received from the smart phone 1503 .

In FIG. 15, an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. Next, referring to FIG. An example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied will be described.

16 is a schematic diagram of an example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention of FIG. 15 is applied It is a signal flow diagram shown as .

Referring to FIG. 16 , first, the wireless communication system includes an OOB device 1501 , a smart phone 1503 , and an AP 1505 .

First, the smart phone 1503 maintains a connected state with the AP 1505 (step 1611), and when the OOB device 1501 is powered on (step 1613), The OOB device 1501 transmits a BLE Advertisement (hereinafter referred to as "BLE Advertisement") message (step 1615). 16, for convenience, the BLE Advertisement message is BLE Adv. It should be noted that it is marked with a message.

The BLE Advertisement message includes an AP Connection Required parameter, an OOB parameter, and a BD Addr or Wi-Fi P2P Addr/Channel Info parameter. Here, each of the AP Connection Required parameter, the OOB parameter, and the BD Addr or Wi-Fi P2P Addr/Channel Info parameter will be described as follows.

First, the AP Connection Required parameter is a parameter indicating whether a corresponding device needs to be connected to an AP, and may be implemented with 1 bit, for example. When the value of the AP Connection Required parameter is a first value, for example, '1', it indicates that the device needs to be connected to the AP, and the value of the AP Connection Required parameter is a second value, for example, '0'. , indicates that the device does not need to be connected to the AP.

The OOB parameter is a parameter indicating whether a corresponding device is an OOB device, and may be implemented with, for example, 1 bit. When the value of the OOB parameter is a first value, for example, '1', it indicates that the device is an OOB device, and when the value of the OOB parameter is a second value, for example, '0', the corresponding device is not an OOB device indicates Here, the OOB device indicates a device that is initially powered on and driven.

The BD Addr or Wi-Fi P2P Addr/Channel Info parameter is a Bluetooth device (BD, hereinafter referred to as “BD”) address or Wi-Fi peer-to-peer (P2P, Hereinafter, it will be referred to as "P2P") address and channel information. Here, the BD address represents a medium access control (MAC, hereinafter referred to as "MAC") address of the BD, and the Wi-Fi P2P address represents an address for connecting Wi-Fi P2P, The channel information represents channel information for connecting the Wi-Fi P2P. In the BLE Advertisement message in step 1615, the value of the AP Connection Required parameter is set to 1, and the value of the OOB parameter is set to 1.

Also, the OOB device 1501 transmits a PIN code and an identifier (ID, hereinafter referred to as "ID") of the OOB device 1501 based on a sound signal (step 1617).

Upon receiving the sound signal from the OOB device 1501, the smart phone 1503 detects that the OOB device 1501 exists in the same space as the smart phone 1503 based on the sound signal (step 1619). . Then, the smart phone 1503 transmits a BLE Advertisement message to the OOB device 1501 (step 1621). The BLE Advertisement message includes an AP Connected parameter and an Authentication Address parameter. Here, each of the AP Connected parameter and the Authentication Address parameter will be described as follows.

The AP Connected parameter is a parameter indicating whether the corresponding device is connected to the AP, and may be implemented with 1 bit, for example. When the value of the AP Connected parameter is a first value, for example, '1', it indicates that the corresponding device is connected to the AP, and when the value of the AP Connected parameter is a second value, for example, '0', the Indicates that the corresponding device is not connected to the AP.

The Authentication Address parameter indicates an address of a device that has succeeded in an authentication procedure, that is, an authenticated address.

In the BLE Advertisement message of step 1621, the value of the AP Connected parameter is set to 1.

Upon receiving the BLE Advertisement message from the smart phone 1503, the OOB device 1501 detects that the OOB device 1501 exists in the same space as the smart phone 1503 (step 1623). In this way, the OOB device 1501 that has detected that it exists in the same space as the smart phone 1503 sets up a Bluetooth connection (BT connection) with the smart phone 1503 (step 1625). , or set up a Wi-Fi P2P connection (step 1627). Here, in the connection between the smart phone 1503 and the OOB device 1501 , the Bluetooth connection has a higher priority than the Wi-Fi P2P connection. That is, the priority of the Bluetooth connection is the first priority, and the priority of the Wi-Fi P2P connection is the second priority.

Also, while the Bluetooth connection setup and Wi-Fi P2P connection setup operations are being performed, the smart phone 1503 provides connection information with the AP 1505 to the OOB device 1501 . That is, while the operation of establishing a Bluetooth connection between the smart phone 1503 and the OOB device 1501 is being performed, the smart phone 1503 transmits the Bluetooth connection information stored in the smart phone 1503 itself. It is provided to the OOB device 1501 . On the other hand, while the operation of setting up a Wi-Fi P2P connection between the smart phone 1503 and the OOB device 1501 is performed, the smart phone 1503 displays the Wi-Fi stored in the smart phone 1503 itself. -Fi P2P connection information is provided to the OOB device 1501 .

The OOB device 1501, which has set up a Wi-Fi P2P connection with the smart phone 1503, establishes a Wi-Fi connection with the AP 1505 based on the Wi-Fi P2P connection information provided from the smart phone 1503. Set up (step 1629).

Meanwhile, FIG. 16 is an example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in the wireless communication system according to an embodiment of the present invention of FIG. 15 is applied Although FIG. 16 is shown, of course, various modifications may be made to FIG. 16 . As an example, although successive steps are illustrated in FIG. 16 , the steps described in FIG. 16 may overlap, occur in parallel, occur in a different order, or occur multiple times.

16 shows an example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in the wireless communication system according to an embodiment of the present invention of FIG. 15 is applied. Next, with reference to FIG. 17, signal transmission and Another example of the reception process will be described.

17 schematically illustrates another example of a signal transmission and reception process according to an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention of FIG. 15 is applied; It is a signal flow diagram shown as .

Referring to FIG. 17 , first, the wireless communication system includes an OOB device 1501 , a smart phone 1503 , and an AP 1505 .

First, the smart phone 1503 maintains a connected state with the AP 1505 (step 1711), and when the OOB device 1501 is powered on (step 1713), the OOB device 1501 transmits a BLE Advertisement message (step 1715). 17, for convenience, the BLE Advertisement message is BLE Adv. It should be noted that it is marked with a message. The BLE Advertisement message includes an AP Connection Required parameter, an OOB parameter, and a BD Addr or Wi-Fi P2P Addr/Channel Info parameter. Each of the AP Connection Required parameter, the OOB parameter, and the BD Addr or Wi-Fi P2P Addr/Channel Info parameter is the same as described in FIG. 16, and thus detailed description thereof will be omitted. In addition, in the BLE Advertisement message in step 1715, the value of the AP Connection Required parameter is set to 1, and the value of the OOB parameter is set to 1.

Upon receiving the BLE Advertisement message from the OOB device 1501, the smart phone 1503 transmits a connection request (CONNECT_REQ, hereinafter referred to as “CONNECT_REQ”) message to the OOB device 1501 (step 1717). ). Also, the smart phone 1503 transmits a command write (write command, hereinafter referred to as a “write command”) message to the OOB device 1501 (step 1719). Here, the write command message is a BLE GATT (generic attribute profile) command message, and a type parameter (hereinafter referred to as a “type parameter”) and a value parameter (hereinafter referred to as a “value parameter”) do) is included. When the value of the type parameter is, for example, a first value, for example, '0x00', the type parameter indicates that the write command message is an indicator message. In addition, the value parameter indicates the value of the message indicated by the type parameter. For example, when the value of the value parameter is a first value, for example, '0x02', the value parameter indicates that the indicator message is a distance request (distance request: Distance Req, hereinafter referred to as "Distance Req"). indicates. Here, the Distance Req indicates that the corresponding device requests to detect the distance to the counterpart device.

Upon receiving the write command message from the smart phone 1503, the OOB device 1501 transmits a handle value notification (hereinafter referred to as "handle value notification") message in response to the write command message. (Step 1721). Here, the handle value notification message includes a type parameter and a value parameter, the value of the type parameter represents a first value, for example, '0x00', and the value parameter represents a second value, for example, '0x03'. . Here, the value parameter having a value of '0x03' represents a distance response (Distance Rsp, hereinafter referred to as "Distance Rsp"). Here, the Distance Rsp represents a response to the Distance Req indicating that the corresponding device has confirmed that the distance detection with the counterpart device is required.

In addition, upon receiving the write command message, the OOB device 1501 transmits the PIN code of the OOB device 1501 based on a sound signal to perform a distance detection operation with the smart phone 1503 ( In step 1721), the smart phone 1503 also transmits a sound signal (step 1725).

Upon receiving the sound signal from the smart phone 1503, the OOB device 1501 transmits a handle value notification message to the smart phone 1503 (step 1727). Here, the handle value notification message includes a type parameter and a value parameter, the value of the type parameter is, for example, set to a second value, for example, '0x10', and the value of the value parameter is, for example, a third value, As an example, it is set to 'xx'. Here, when the value of the type parameter is set to '0x10', it indicates a detection peak. Upon receiving the handle value notification message from the OOB device 1501, the smart phone 1503 transmits a write command message to the OOB device 1501 (step 1729). Here, the write command message includes a type parameter and a value parameter, the value of the type parameter has, for example, a third value, for example, '0x11', and the value of the value parameter is, for example, a third value, for example. It is set to 'xx'. Here, when the value of the type parameter is set to '0x11', a distance result is indicated, and the value of the value parameter is set to be the same as the value of the value parameter included in the handle value notification message.

The smart phone 1503 that has transmitted the write command message to the OOB device 1501 detects that the OOB device 1501 exists in the same space as the smart phone 1503 (step 1731). Then, the smart phone 1503 transmits a write command message to the OOB device 1501 . The write command message includes a type parameter and a value parameter, the type parameter is set to, for example, a fourth value, for example, '0x20', and the value of the value parameter is, for example, a third value, for example, 'xx' is set to Here, when the value of the type parameter is set to '0x20', it represents an authentication address, and the value of the value parameter is set to be the same as the value of the value parameter included in the handle value notification message.

After transmitting the write command message, the smart phone 1503 transmits a BLE Advertisement message to the OOB device 1501 (step 1735). The BLE Advertisement message includes a P2P Connection Ready parameter and an Authentication Address parameter. The P2P Connection Ready parameter is a parameter indicating whether a corresponding device requires a P2P connection, and may be implemented with 1 bit, for example. When the value of the P2P Connection Ready parameter is a first value, for example, '1', it indicates that the corresponding device needs a P2P connection, and when the value of the P2P Connection Ready parameter is a second value, for example, '2', the Indicates that the device does not need a peer-to-peer connection. In the BLE Advertisement message in step 1735, the value of the P2P Connection Ready parameter is set to 1.

Upon receiving the BLE Advertisement message from the smart phone 1503, the OOB device 1501 detects that the OOB device 1501 exists in the same space as the smart phone 1503, and the OOB device 1501 and the smart phone 1503 The distance between the phones 1503 is detected (step 1737). In this way, the OOB device 1501, which detects that it exists in the same space as the smart phone 1503, and also detects the distance between the OOB device 1501 and the smart phone 1503, is connected to the smart phone 1503 via Bluetooth. set up (step 1739), or set up a Wi-Fi P2P connection (step 1741). Here, in the connection between the smart phone 1503 and the OOB device 1501 , the Bluetooth connection has a higher priority than the Wi-Fi P2P connection. That is, the priority of the Bluetooth connection is the first priority, and the priority of the Wi-Fi P2P connection is the second priority.

Also, while the Bluetooth connection setup and Wi-Fi P2P connection setup operations are being performed, the smart phone 1503 provides connection information with the AP 1505 to the OOB device 1501 . That is, while the operation of establishing a Bluetooth connection between the smart phone 1503 and the OOB device 1501 is being performed, the smart phone 1503 transmits the Bluetooth connection information stored in the smart phone 1503 itself. It is provided to the OOB device 1501 . On the other hand, while the operation of setting up a Wi-Fi P2P connection between the smart phone 1503 and the OOB device 1501 is performed, the smart phone 1503 displays the Wi-Fi stored in the smart phone 1503 itself. -Fi P2P connection information is provided to the OOB device 1501 .

The OOB device 1501, which has set up a Wi-Fi P2P connection with the smart phone 1503, establishes a Wi-Fi connection with the AP 1505 based on the Wi-Fi P2P connection information provided from the smart phone 1503. set up (step 1743).

Meanwhile, FIG. 17 is another example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in the wireless communication system according to an embodiment of the present invention of FIG. 15 is applied. Although FIG. 17 is shown, it goes without saying that various modifications may be made to FIG. 17 . As an example, although successive steps are illustrated in FIG. 17 , the steps described in FIG. 17 may overlap, occur in parallel, occur in a different order, or occur multiple times.

17 shows another example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in the wireless communication system according to an embodiment of the present invention of FIG. 15 is applied. Next, with reference to FIG. 18, in the wireless communication system according to an embodiment of the present invention of FIG. 15, signal transmission and Another example of the reception process will be described.

18 is another example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention of FIG. 15 is applied. It is a schematic diagram of a signal flow.

Referring to FIG. 18 , first, the wireless communication system includes an OOB device 1501 , a smart phone 1503 , and an AP 1505 . In FIG. 18 , it is described as an OOB device 1501 for convenience of description, but it should be noted that the OOB device 1501 is not an actual OOB device, but a device that is paired with another device after the initial power-on.

First, the smart phone 1503 and the OOB device 1501 are paired (step 1811), and the OOB device 1501 and the AP 1505 maintain a connected state (step 1813).

The OOB device 1501 transmits a BLE Advertisement message to the smart phone 1503 (step 1815). 18, for convenience, the BLE Advertisement message is BLE Adv. It should be noted that it is marked with a message. The BLE Advertisement message includes an AP Connected parameter. The AP Connected parameter is a parameter indicating whether the corresponding device is connected to the AP, and may be implemented with 1 bit, for example. When the value of the AP Connected parameter is a first value, for example, '1', it indicates that the corresponding device is connected to the AP, and when the value of the AP Connected parameter is a second value, for example, '0', the corresponding device is connected to the AP. Indicates that the device is not connected to the AP. In the BLE Advertisement message of step 1815, the value of the AP Connected parameter is set to 1.

In this way, when the connection established between the OOB device 1501 and the AP 1505 is released due to a specific event occurring while the OOB device 1501 and the AP 1505 are maintaining the connected state That is, the OOB device 1501 transitions to a disconnected state (step 1817).

When the OOB device 1501 detects that a network connection is required while operating in the disconnected state (step 1819), it transmits a BLE Advertisement message to the smart phone 1503 (step 1821). The BLE Advertisement message includes an AP Connection Required parameter, an OOB parameter, and a BD Addr or Wi-Fi P2P Addr/Channel Info parameter. Here, in the BLE Advertisement message, since the AP Connection Required parameter, the OOB parameter, and the BD Addr or Wi-Fi P2P Addr/Channel Info parameter are the same as those described in FIG. 16 , detailed descriptions thereof will be omitted. In the BLE Advertisement message in step 1821, the value of the AP Connection Required parameter is set to 1, and the value of the OOB parameter is set to 0.

Upon receiving the BLE Advertisement message from the OOB device 1501, the smart phone 1503 transmits the BLE Advertisement message to the OOB device 1501 (step 1823). The BLE Advertisement message includes an AP Connected parameter and an Authentication Address parameter. In the BLE Advertisement message in step 1823, the value of the AP Connected parameter is set to 1.

Upon receiving the BLE Advertisement message from the smart phone 1503, the OOB device 1501 establishes a Bluetooth connection with the smart phone 1503 (step 1825) or a Wi-Fi P2P connection (step 1827). Here, in the connection between the smart phone 1503 and the OOB device 1501 , the Bluetooth connection has a higher priority than the Wi-Fi P2P connection. That is, the priority of the Bluetooth connection is the first priority, and the priority of the Wi-Fi P2P connection is the second priority.

Also, while the Bluetooth connection setup and Wi-Fi P2P connection setup operations are being performed, the smart phone 1503 provides connection information with the AP 1505 to the OOB device 1501 . That is, while the operation of establishing a Bluetooth connection between the smart phone 1503 and the OOB device 1501 is being performed, the smart phone 1503 transmits the Bluetooth connection information stored in the smart phone 1503 itself. It is provided to the OOB device 1501 . On the other hand, while the operation of setting up a Wi-Fi P2P connection between the smart phone 1503 and the OOB device 1501 is performed, the smart phone 1503 displays the Wi-Fi stored in the smart phone 1503 itself. -Fi P2P connection information is provided to the OOB device 1501 .

The OOB device 1501, which has set up a Wi-Fi P2P connection with the smart phone 1503, establishes a Wi-Fi connection with the AP 1505 based on the Wi-Fi P2P connection information provided from the smart phone 1503. Set up (step 1829).

Meanwhile, FIG. 18 is another diagram of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in the wireless communication system according to an embodiment of the present invention of FIG. 15 is applied. Although an example is shown, of course, various modifications may be made to FIG. 18 . As an example, although consecutive steps are illustrated in FIG. 18 , the steps described in FIG. 18 may overlap, occur in parallel, occur in a different order, or occur multiple times.

18 shows another example of a signal transmission and reception process according to an example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in the wireless communication system according to an embodiment of the present invention of FIG. 15 is applied. has been described, and next, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied will be described with reference to FIG. 19 .

19 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 19, first, another example of an operation scenario to which the process of transmitting and receiving data based on the sound signal shown in FIG. 19 is applied is to automatically perform a pairing operation with another device when a new device is powered on. It should be noted that this is an operational scenario. Hereinafter, for convenience of description, the new device will be referred to as an OOB device, and the OOB device includes a speaker.

First, when the OOB device 1901 is powered on (step 1911), the OOB device 1901 transmits a sound signal corresponding to a randomly generated PIN code (step 1913). Accordingly, the reception device 1903 existing in the same space as the OOB device 1901 may receive the sound signal transmitted from the OOB device 1901 . In FIG. 19 , it is assumed that the receiving device 1903 is a smart phone as an example. The smart phone 1903 detects the PIN code of the OOB device 1901 based on the received sound signal, and transmits the PIN code detected by the smart phone 1903 to the OOB device 1901 in the BLE mode. transmit (step 1915).

Then, the OOB device 1901 attempts a P2P connection from the OOB device 1901 to the smart phone 1903 existing within a preset threshold distance. Accordingly, the smart phone 1903 establishes a P2P connection with the OOB device 1901 (step 1917).

19, when a new device, that is, an OOB device, is automatically paired with another device, the following effects are obtained.

(1) P2P network setup steps can be reduced. Accordingly, a P2P connection procedure between devices existing in the same space can be simplified.

(2) Since a PIN code can be transmitted based on a sound signal, devices can authenticate that they exist in the same space with each other.

(3) Since the PIN code can be transmitted based on the sound signal, devices can not only authenticate that they exist in the same space but also detect the distance between the devices.

Accordingly, the authority may be differentiated according to the distance between the devices. In addition, the devices can be paired only when they exist in the same space and exist within a threshold distance between each other.

(4) It is possible to authenticate whether devices exist in the same space through the three-step authentication procedure. Here, in the three-step authentication procedure, first, when each of the devices can detect a sound signal transmitted from the counterpart device, when the smart phone returns the PIN code transmitted by the OOB device, and the OOB device and the case where the distance between the smart phone and the smart phone is less than the threshold distance.

In FIG. 19, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. Next, referring to FIG. 20, FIG. An example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied will be described.

20 schematically illustrates an example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention. It is a drawing.

Referring to FIG. 20 , first, the wireless communication system includes an OOB device 1901 and a smart phone 1903 .

First, when the OOB device 1901 is powered on (step 2011), the OOB device 1901 transmits a BLE Advertisement message (step 2013). 20, for convenience, the BLE Advertisement message is BLE Adv. It should be noted that it is marked with a message. The BLE Advertisement message includes a P2P Connection Ready parameter, an OOB parameter, and a BD Addr or Wi-Fi P2P Addr/Channel Info parameter. Since the BLE Advertisement message is the same as described above for each of the P2P Connection Ready parameter, the OOB parameter, and the BD Addr or Wi-Fi P2P Addr/Channel Info parameter, a detailed description thereof will be omitted. In the BLE Advertisement message of step 2013, the value of the P2P Connection Ready parameter is set to 1.

In addition, the OOB device 1901 transmits the PIN code and ID of the OOB device 1901 based on the sound signal (step 2015).

The smart phone 1903 that has received the sound signal from the OOB device 1901 detects that the OOB device 1901 exists in the same space as the smart phone 1903 based on the sound signal (Step 2017) . Then, the smart phone 1903 transmits a BLE Advertisement message to the OOB device 1901 (step 2019). The BLE Advertisement message includes a P2P Connection Ready parameter and an Authentication Address parameter. Since each of the P2P Connection Ready parameter and the Authentication Address parameter is the same as described above, a detailed description thereof will be omitted here. In the BLE Advertisement message of step 2019, the value of the P2P Connection Ready parameter is set to 1.

Upon receiving the BLE Advertisement message from the smart phone 1903, the OOB device 1901 detects that the OOB device 1901 exists in the same space as the smart phone 1903 (step 2021). In this way, the OOB device 1901 detecting that it exists in the same space as the smart phone 1903 establishes a Bluetooth connection with the smart phone 1503 (step 2023) or sets up a Wi-Fi P2P connection (step 2023) ( 2025 step).

In this way, when a Bluetooth connection or Wi-Fi P2P connection is established between the OOB device 1901 and the smart phone 1903, the OOB device 1901 and the smart phone 1903 are paired (step 2027).

Meanwhile, FIG. 20 shows an example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention. Although, it is to be understood that various modifications may be made to FIG. 20 . For example, although successive steps are illustrated in FIG. 20 , the steps described in FIG. 20 may overlap, occur in parallel, occur in a different order, or occur multiple times.

In FIG. 20, an example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. Next, with reference to FIG. 21, another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied about to be explained.

21 schematically illustrates another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention. It is a drawing.

Referring to FIG. 21 , first, the wireless communication system includes an OOB device 1901 and a smart phone 1903 .

First, when the OOB device 1901 is powered on (step 2111), the OOB device 1901 transmits a BLE Advertisement message (step 2113). 21, for convenience, the BLE Advertisement message is BLE Adv. It should be noted that it is marked with a message. The BLE Advertisement message includes a Co-presence/Distance parameter, a P2P Connection Ready parameter, an OOB parameter, and a BD Addr parameter. The Co-presence/Distance parameter is a parameter indicating that the same space and distance detection is required. In addition, since the P2P Connection Ready parameter, OOB parameter, and BD Addr parameter are the same as described above, a detailed description thereof will be omitted. In the BLE Advertisement message in step 2113, the value of the P2P Connection Ready parameter is set to 1, and the value of the OOB parameter is set to 1.

Upon receiving the BLE Advertisement message from the OOB device 1901, the smart phone 1903 transmits a CONNECT_REQ message to the OOB device 1901 (step 2115). Also, the smart phone 1903 transmits a write command message to the OOB device 1901 (step 2117). Here, the write command message includes a type parameter and a value parameter, and since the write command message, type parameter, and value parameter are the same as described above, a detailed description thereof will be omitted. In the write command message in step 2117, the value of the type parameter is set to 0x00, and the value of the value parameter is set to '0x02'.

Upon receiving the write command message from the smart phone 1903, the OOB device 1901 transmits a handle value notification message in response to the write command message (step 2119). Here, the handle value notification message of step 2119 includes a type parameter and a value parameter, and the value of the type parameter is set to a first value, for example, '0x00', that is, the type parameter indicates an indicator, The value of the value parameter is, for example, set to a second value, for example, '0x03', that is, the value parameter represents Distance Rsp.

In addition, the OOB device 1901 transmits the PIN code of the OOB device 1901 based on a sound signal to perform a distance detection operation with the smart phone 1903 upon receiving the write command message ( Step 2121), the smart phone 1903 also transmits a sound signal (step 2123).

Upon receiving the sound signal from the smart phone 1903, the OOB device 1901 transmits a handle value notification message to the smart phone 1903 (step 2125). Here, the handle value notification message of step 2125 includes a type parameter and a value parameter, the value of the type parameter is set to, for example, a second value, for example, '0x10', and the value of the value parameter is, for example, The third value, for example, is set to 'xx'. That is, the type parameter indicates peak value detection.

Upon receiving the handle value notification message from the OOB device 1901, the smart phone 1903 transmits a write command message to the OOB device 1501 (step 2127). Here, the write command message includes a type parameter and a value parameter, the value of the type parameter has, for example, a third value, for example, '0x11', and the value of the value parameter is, for example, a third value, for example. It is set to 'xx'. That is, the value of the type parameter represents a distance result, and the value of the value parameter is set to be the same as the value of the value parameter included in the handle value notification message.

The smart phone 1903 that has transmitted the write command message to the OOB device 1901 detects that the OOB device 1901 exists in the same space as the smart phone 1903 (step 2129). Then, the smart phone 1903 transmits a write command message to the OOB device 1901 (step 2131). The write command message in step 2123 includes a type parameter and a value parameter, the type parameter is set to, for example, a fourth value, for example, '0x20', and the value of the value parameter is, for example, a third value, for example. It is set to 'xx'. That is, the value of the type parameter represents the Authentication Address, and the value of the value parameter is set to be the same as the value of the value parameter included in the handle value notification message.

After transmitting the write command message, the smart phone 1903 transmits a BLE Advertisement message to the OOB device 1901 (step 2133). The BLE Advertisement message includes a P2P Connection Ready parameter and an Authentication Address parameter. Since the P2P Connection Ready parameter and the Authentication Address parameter are the same as described above, a detailed description thereof will be omitted here. In the BLE Advertisement message in step 2133, the value of the P2P Connection Ready parameter is set to 1.

Upon receiving the BLE Advertisement message from the smart phone 1903, the OOB device 1901 detects that the OOB device 1901 exists in the same space as the smart phone 1903, and the OOB device 1901 and the smart phone 1903 The distance between the phones 1903 is detected (step 2135). In this way, the OOB device 1901, which detects that it exists in the same space as the smart phone 1903 and also detects the distance between the OOB device 1901 and the smart phone 1903, is connected to the smart phone 1903 via Bluetooth. set up (step 2137).

In this way, when a Bluetooth connection is established between the OOB device 1901 and the smart phone 1903, the OOB device 1901 and the smart phone 1903 are paired (step 2139).

Meanwhile, FIG. 21 shows another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention. Although, of course, various modifications may be made to FIG. 21 . As an example, although consecutive steps are illustrated in FIG. 21 , the steps described in FIG. 21 may overlap, occur in parallel, occur in a different order, or may occur multiple times.

In FIG. 21, another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 22, another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied to be explained.

22 schematically illustrates another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention This is a signal flow diagram.

Referring to FIG. 22 , the wireless communication system includes an OOB device 1901 and a smart phone 1903 . 22, it should be noted that, although the OOB device 1901 is described for convenience of description, the OOB device 1901 is not an actual OOB device, but a device that is paired with another device after the initial power-on.

First, in a state in which the smart phone 1903 and the OOB device 1901 are paired (step 2211), when the OOB device 1901 is powered on (step 2213), the OOB device 1901 sends a BLE Advertisement message is transmitted (step 2215). 21, for convenience, the BLE Advertisement message is BLE Adv. It should be noted that it is marked with a message. The BLE Advertisement message includes a P2P Connection Ready parameter, an OOB parameter, and a BD Addr or Wi-Fi P2P Addr/Channel Info parameter. The P2P Connection Ready parameter, the OOB parameter, and the BD Addr or Wi-Fi P2P Addr/Channel Info parameter are the same as described above, and thus detailed descriptions thereof will be omitted. In the BLE Advertisement message in step 2215, the value of the P2P Connection Ready parameter is set to 1, and the value of the OOB parameter is set to 0.

Upon receiving the BLE Advertisement message from the OOB device 1901, the smart phone 1903 detects a user action or automatic connection request that may be generated by the user of the smart phone 1903 (step 2217). In this way, the smart phone 1903 detecting the user action or the automatic connection request transmits a BLE Advertisement message (step 2219). Here, the BLE Advertisement message includes a P2P Connection Ready parameter and an Authentication Address parameter. Since the P2P Connection Ready parameter and the Authentication Address parameter are the same as described above, a detailed description thereof will be omitted here. In the BLE Advertisement message in step 2219, the value of the P2P Connection Ready parameter is set to 1.

Upon receiving the BLE Advertisement message from the smart phone 1903, the OOB device 1901 establishes a Bluetooth connection with the smart phone 1903 (step 2221) or sets up a Wi-Fi P2P connection (step 2223).

Meanwhile, FIG. 22 shows another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention. It goes without saying that various modifications may be made to FIG. 22 . As an example, although successive steps are illustrated in FIG. 22 , the steps described in FIG. 22 may overlap, occur in parallel, occur in a different order, or occur multiple times.

In FIG. 22, another example of a signal transmission and reception process according to another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. , Next, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied will be described with reference to FIG. 23 .

23 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 23, first, another example of an operation scenario to which the process of transmitting and receiving data based on the sound signal shown in FIG. 23 is applied is 1:N Geo-fencing (hereinafter referred to as "Geo- It should be noted that this is an operation scenario in which a service triggering operation is performed to a plurality of devices existing within a specific distance based on "fencing").

First, the wireless communication system includes an initiator (hereinafter, referred to as “initiator”) device 2311 and a plurality of peripheral devices, for example, four peripheral devices, for example, device #1 (2313) and , including device #2 (2315), device #3 (2317), and device #4 (2319).

The initiator device 2311 transmits a PIN code of the initiator device 2311 itself to peripheral devices using a near-field sound signal. Among the peripheral devices, the peripheral devices that have received the sound signal transmitted from the initiator device 2311 may detect the PIN code of the initiator device 2311 based on the received sound signal. The peripheral devices that have detected the PIN code of the initiator device 2311 transmit the PIN code of the initiator device 2311 detected by the peripheral devices to the initiator device 2311 .

The initiator device 2311 performs a service triggering operation with peripheral devices that have transmitted the PIN code of the initiator device 2311 .

A detailed description of such a service triggering procedure is as follows.

First, the initiator device 2311 transmits its own PIN code using a sound signal (steps 2321, 2327, 2329, and 2335). Here, it is assumed that the initiator device 2311 transmits the PIN code using a short-range sound signal, and the device #1 (2313), the device #2 (2315), and the device #3 (2317), respectively. It is assumed that the distance between the initiator device 2311 and the initiator device 2311 is less than or equal to the short distance, and the distance between the device #4 2319 and the initiator device 2311 exceeds the short distance.

Then, each of the peripheral devices of the initiator device 2311 may extract the PIN code transmitted by the initiator device 2311 based on the distance from the initiator device 2311 and the ability to interpret a sound signal.

That is, the device #1 (2313) can not only interpret the sound signal transmitted by the initiator device 2311, but also because the distance between the device #1 (2313) and the initiator device 2311 is less than or equal to a short distance, the initiator The PIN code transmitted by the device 2311 may be detected. Device #1 (2313), which has detected the PIN code of the initiator device 2311, transmits the detected PIN code of the initiator device 2311 to the initiator device 2311 (step 2323). Accordingly, the initiator device 2311 performs a service triggering operation with the device #1 2313 (step 2325).

It is assumed that the device #2 2315 cannot interpret the sound signal transmitted by the initiator device 2311. For example, the device #2 2315 may not interpret the sound signal transmitted by the initiator device 2311 because the manufacturer is different from the initiator device 2311 . Accordingly, the device #2 2315 cannot detect the PIN code of the initiator device 2311, and thus cannot transmit the PIN code of the initiator device 2311 to the initiator device 2311. Accordingly, the initiator device 2311 cannot perform a service triggering operation with the device #2 2315.

The device #3 (2317) can not only interpret the sound signal transmitted by the initiator device 2311, but also because the distance between the device #3 (2317) and the initiator device 2311 is less than or equal to a short distance, 2311) can detect the transmitted PIN code. Device #3 2317, which has detected the PIN code of the initiator device 2311, transmits the detected PIN code of the initiator device 2311 to the initiator device 2311 (step 2331). Accordingly, the initiator device 2311 performs a service triggering operation with the device #3 2317 (step 2333).

Since the distance between the device #4 (2319) and the initiator device (2311) exceeds the short distance, the device #4 (2319) cannot receive the sound signal transmitted by the initiator device (2311). Accordingly, the device #4 ( 2319 ) cannot detect the PIN code of the initiator device ( 2311 ), and thus cannot transmit the PIN code of the initiator device ( 2311 ) to the initiator device ( 2311 ). Accordingly, the initiator device 2311 cannot perform a service triggering operation with the device #4 2319.

As described in FIG. 23, in the case of an operation scenario in which a service triggering operation is performed to a plurality of devices existing within a specific distance based on 1:N geo-fencing, the initiator device uses a sound signal to input a PIN code only once. Even when transmitting, a service triggering operation can be performed with a plurality of devices.

In addition, as described in FIG. 23 , in the case of an operation scenario in which a service triggering operation is performed on a plurality of devices existing within a specific distance based on 1:N geo-fencing, the initiator device based on the distance characteristic of the sound signal In addition to being able to select devices to perform the service triggering operation, the initiator device may select devices to performing the service triggering operation based on whether the sound signal can be interpreted.

In FIG. 23, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. Next, referring to FIG. 24, the present invention Another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment will be described.

24 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 24 , another example of an operation scenario to which a process of transmitting and receiving data based on a sound signal shown in FIG. 24 is applied is another example of an exclusive Geo-fencing (hereinafter referred to as “exclusive Geo-fencing”). It should be noted that this is an operation scenario in which a service triggering operation is performed on a plurality of devices existing outside a specific distance based on "fencing").

First, the wireless communication system includes an initiator device 2411, a plurality of peripheral devices, for example, four peripheral devices, for example, device #1 (2413), device #2 (2415), and device #3 ( 2417) and device #4 (2419).

The initiator device 2411 includes a plurality of speakers, for example, two speakers, for example, a speaker #1 and a speaker #2. The initiator device 2411 transmits a PIN code of the initiator device 2411 itself to peripheral devices using a far-field sound signal through the speaker #1. In addition, the initiator device 2411 transmits an invert signal of the far-end sound signal communicated through the speaker #1 using the near-field sound signal through the speaker #2.

Accordingly, the initiator device 2411 and peripheral devices located in a short distance detect the PIN code of the initiator device 2411 through active noise canceling (hereinafter, referred to as “active noise canceling”) operation. It is impossible, and peripheral devices that are remote from the initiator device 2411 may detect the PIN code of the initiator device 2411 . Accordingly, peripheral devices that have detected the PIN code of the initiator device 2411 and that exist far from the initiator device 2411 transmit the detected PIN code of the initiator device 2411 to the initiator device 2411 . .

A detailed description of such a service triggering procedure is as follows.

First, the initiator device 2411 transmits its own PIN code by using a sound signal. Here, it is assumed that the initiator device 2411 transmits the PIN code using a remote sound signal, and the distance between the device #2 ( 2415 ) and device #3 ( 2417 ) and the initiator device 2411 is It is assumed that the distance between the device #1 2413 and the device #4 2319 and the initiator device 2311 exceeds the remote distance.

Then, each of the peripheral devices of the initiator device 2411 may extract the PIN code transmitted by the initiator device 2411 based on the distance from the initiator device 2411 and the active noise canceling operation.

That is, the device #1 ( 2413 ) can detect the PIN code transmitted by the initiator device ( 2411 ) because the distance between the device #1 ( 2413 ) and the initiator device ( 2411 ) exceeds the long distance. Device #1 2413 that has detected the PIN code of the initiator device 2411 transmits the detected PIN code of the initiator device 2411 to the initiator device 2411 . Accordingly, the initiator device 2411 performs a service triggering operation with the device #1 2413 .

Since the distance between each of the device #2 (2415) and device #3 (2417) and the initiator device 2411 is less than or equal to the distance, the device #2 (2415) and device #3 (2417) each perform an active noise canceling operation The sound signal transmitted by the initiator device 2411 through the initiator device 2411 cannot be interpreted. Therefore, the device #2 ( 2415 ) and device #3 ( 2417 ) each cannot detect the PIN code of the initiator device 2411 , and thus the PIN code of the initiator device 2411 to the initiator device 2411 . cannot be sent Accordingly, the initiator device 2411 cannot perform a service triggering operation with the device #2 2415.

The device #4 (2419) can not only interpret the sound signal transmitted by the initiator device 2411, but also because the distance between the device #4 (2419) and the initiator device 4311 exceeds the long distance, the initiator The PIN code transmitted by the device 2411 may be detected. Device #4 2419 that has detected the PIN code of the initiator device 2411 transmits the detected PIN code of the initiator device 2411 to the initiator device 2411 . Accordingly, the initiator device 2411 performs a service triggering operation with the device #4 (2419).

As described in FIG. 24 , in the case of an operation scenario in which a service triggering operation is performed on a plurality of devices located outside a specific distance based on exclusive geo-fencing, the initiator device uses an original sound signal through two speakers. It is possible to perform a service triggering operation with a plurality of devices by transmitting a PIN code and simultaneously transmitting an inverted signal for the original sound signal using the inverted sound signal.

In addition, in the case of an operation scenario in which a service triggering operation is performed on a plurality of devices existing outside a specific distance based on exclusive geo-fencing as described in FIG. 24 , the initiator device provides a service based on the distance characteristic of the sound signal. Devices for which a triggering operation is to be performed may be selected.

In FIG. 24, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 25, the present invention Another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment will be described.

25 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 25 , another example of an operation scenario to which the process of transmitting and receiving data based on a sound signal shown in FIG. 25 is applied is an operation scenario of searching for a device based on a volume change of the sound signal. will have to pay attention to

First, the wireless communication system includes an initiator device 2511, a plurality of peripheral devices, for example, four peripheral devices, for example, device #1 (2513), device #2 (2515), and device #3 ( 2517) and device #4 (2519).

The initiator device 2511 sets the volume of the sound signal to the lowest level, and transmits the PIN code of the initiator device 2511 through the sound signal having the lowest level. The initiator device 2511 detects the PIN code transmitted by the initiator device 2511 itself, and until a device transmitting to the initiator device 2511 itself is detected, that is, from other devices, the initiator device 2511 itself. The sound signal is continuously transmitted while increasing the volume of the sound signal by a preset volume step until a PIN code is received.

Meanwhile, the peripheral device that has detected the PIN code transmitted by the initiator device 2511 transmits the PIN code detected by the peripheral device to the initiator device 2511 .

25, the initiator device 2511 transmits a sound signal while increasing the volume based on the volume step from the lowest level of the PIN code of the initiator device 2511 to the initiator device ( Until there is a peripheral device transmitting the PIN code of 2511), that is, device #2 (2515) transmits the PIN code of the initiator device 2511, the PIN code of the initiator device 2511 is transmitted through a sound signal. send through

As described with reference to FIG. 25 , in an operation scenario of searching for a device based on a change in the volume of a sound signal, the initiator device may search for a peripheral device while increasing the volume of the sound signal.

In addition, in the operation scenario of searching for a device based on a change in the volume of a sound signal as described in FIG. 25, even if the initiator device does not detect the exact distance between the initiator device and the peripheral devices, the closest peripheral device to the initiator device is selected. can explore.

In FIG. 25, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. Next, with reference to FIG. 26, the present invention Another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment will be described.

26 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 26 , it should be noted that another example of an operation scenario to which a process of transmitting and receiving data based on a sound signal shown in FIG. 26 is applied is an operation scenario in which an automatic power saving mode is performed.

First, the distance between the TV 2611 and the second device (not shown separately in FIG. 26 ), for example, a smart phone, is greater than or equal to the threshold distance while a video is being played on the first device 2611 , for example, the TV 2611 . In this case, the TV 2611 executes a co-presence (hereinafter, referred to as “co-presence”) function. As the co-presence function is executed, the TV 2611 detects whether the TV 2611 and the smart phone exist in the same space. Since the method of detecting whether devices exist in the same space has been described above, a detailed description thereof will be omitted herein.

When a smart phone existing in the same space as the TV 2611 is not detected, the TV 2611 stops the video being played on the TV 2611 and transitions the operation mode to the automatic power saving mode.

In FIG. 26, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. Next, referring to FIG. 27, the present invention Another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment will be described.

27 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 27 , another example of an operation scenario to which a process of transmitting and receiving data based on a sound signal shown in FIG. 27 is applied is an operation of performing an automatic log-in procedure for each account It should be noted that this is a scenario.

First, when the distance between the first device, for example, the smart phone 2711 , and the second device, for example, the laptop PC 2713 is less than or equal to the threshold distance, the laptop PC 2713 is registered with the laptop PC 2713 . It is checked whether an account of the smart phone 2711 exists among the existing accounts. As a result of the examination, if an account of the smart phone 2711 exists among the accounts registered in the laptop PC 2713, the laptop PC 2713 performs an automatic account login operation, and the setting of the laptop PC 2713 (setting) is changed to a setting suitable for the smart phone 2711 .

Contrary to this, when the account of the smart phone 2711 does not exist among the accounts registered in the laptop PC 2713 as a result of the examination, the laptop PC 2713 transmits a sound signal to the smart phone 2711 through a sound signal. It is confirmed on the display whether to register a user account in the laptop PC 2713, and when the smart phone 2711 wants to register a user account in the laptop PC 2713, the user account of the smart phone 2711 is displayed. Register.

On the other hand, the smart phone 2711 performs the account automatic login procedure, performs the account automatic login procedure after performing the user account registration procedure, or performs the process performed before the user account registration procedure carry out as is

In FIG. 27, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. Next, referring to FIG. 28, the present invention Another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment will be described.

28 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 28, first, it should be noted that another example of an operation scenario to which the process of transmitting and receiving data based on the sound signal shown in FIG. 28 is applied is an operation scenario in which a gravity procedure is performed. something to do.

First, when the distance between the first device, for example, the smart phone 2811, and the second device, for example, the TV 2813, which was playing a video, becomes less than or equal to the threshold distance, the TV 2813 is the smart phone 2811 It is checked whether the TV 2813 and the TV 2813 exist in the same space and whether the distance between the smart phone 2811 and the TV 2813 is less than a preset threshold distance.

As a result of the inspection, when the smart phone 2811 and the TV 2813 exist in the same space, and the distance between the smart phone 2811 and the TV 2813 is less than a preset threshold distance, the TV 2813 is The smart phone 281 outputs a message indicating that there is a TV that the smart phone 2811 can use, that is, the TV 2813 . Here, the message may be in the form of an icon, for example.

Meanwhile, as a result of the inspection, even if the smart phone 2811 and the TV 2813 exist in the same space, and the distance between the smart phone 2811 and the TV 2813 is less than a preset threshold distance, the TV ( If there is another smart phone using 2813 , the TV 2813 does not output a message indicating that there is a TV that can be used as the smart phone 2811 , that is, the TV 2813 .

On the other hand, an icon indicating the existence of the TV 2813 is displayed on the smart phone 2811, and when the icon is selected on the smart phone 2811, the moving picture being played on the smart phone 2811 is displayed It is played back on the TV 2813.

In FIG. 28, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. Next, referring to FIG. 29, the present invention Another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment will be described.

29 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 29, it should be noted that another example of an operation scenario to which the process of transmitting and receiving data based on the sound signal shown in FIG. 29 is applied is an example of an operation scenario in which a specific speaker targeting procedure is performed. something to do.

First, the first device 2911, for example, the smart phone 2911 executes a speaker application (application: App, hereinafter referred to as "App"). Also, it is assumed that a plurality of speakers, for example, speaker #1 (2913), speaker #2 (2915), and speaker #3 (2917) exist around the smart phone 2911 . In addition, the smart phone 2911 includes a multi-speaker. The smart phone 2911 targets a speaker desired by the smart phone 2911 using the multi-speaker. In FIG. 29, it is assumed that the smart phone 2911 targets the speaker #1 (2913).

Accordingly, the smart phone 2911 can transmit desired music only to the targeted speaker, that is, the speaker #1 (2913).

In FIG. 29, another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal in a wireless communication system according to an embodiment of the present invention is applied has been described. Next, referring to FIG. 30, the present invention Another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment will be described.

30 is a diagram schematically illustrating another example of an operation scenario to which a process for transmitting and receiving data based on a sound signal is applied in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 30, it should be noted that another example of an operation scenario to which a process of transmitting and receiving data based on a sound signal shown in FIG. 30 is applied is another example of an operation scenario in which a specific speaker targeting procedure is performed. something to do.

First, the speaker App is executed in the first device, for example, a smart phone (not shown separately in FIG. 30 ). Also, it is assumed that a TV 3011 and a plurality of speakers, for example, speaker #1 3013 and speaker #2 3015, exist around the smart phone. In addition, the smart phone includes a multi-speaker. The smart phone uses the multi-speaker to target a speaker desired by the smart phone. In FIG. 30 , it is assumed that the smart phone targets the speaker #1 ( 3013 ).

Accordingly, the smart phone can transmit desired music only to the targeted speaker, that is, speaker #1 (3013).

Meanwhile, an embodiment of the present invention proposes a discovery packet, and the discovery packet will be described in detail as follows.

First, the discovery packet is used for mutual recognition between devices, and an example of the discovery packet is a BLE Advertisement message.

It may be necessary to detect the state of a device for which an automatic connection service is required through a discovery procedure, and each device periodically transmits a BLE Advertisement message for mutual recognition between devices. Therefore, the BLE Advertisement message includes parameters indicating the state of the device, that is, an On/Off parameter, an AP Connected parameter, an AP Connection Required parameter, a P2P Connection Ready parameter, an OOB parameter, and an Account Contains the Required parameter. Since the AP Connected parameter, AP Connection Required parameter, P2P Connection Ready parameter, and OOB parameter are the same as described above, detailed descriptions thereof will be omitted herein.

The On/Off parameter may be implemented with 1 bit, for example, and when the value of the On/Off parameter is set to a first value, for example, 1, it indicates that the corresponding device is being driven, and the On/Off parameter When the value of is set to, for example, the second value, for example, 0, it indicates that the corresponding device is not being driven.

In addition, the Account Required parameter is a parameter indicating whether an account is required. The Account Required parameter may be implemented as one bit, for example, and when the value of the Account Required parameter is set to a first value, for example, 1, for example, is required, and when the value of the Account Required parameter is set to, for example, the second value, for example, 0, it indicates that an account is not required.

Therefore, each device is based on the On/Off parameter, AP Connected parameter, AP Connection Required parameter, P2P Connection Ready parameter, OOB parameter, and Account Required parameter included in the BLE Advertisement message received from the peripheral devices. to detect the state of the peripheral devices. In addition, each device may use the detected state of the peripheral devices when providing a service required by each device.

Hereinafter, a process for automatically setting up an AP connection based on a discovery packet in a wireless communication system according to an embodiment of the present invention will be described with reference to FIGS. 31A and 31B .

31A and 31B are diagrams schematically illustrating a process of automatically setting up an AP connection based on a discovery packet in a wireless communication system according to an embodiment of the present invention.

Referring to FIGS. 31A and 31B , first, the second device 3113 , for example, the smart phone 3113 periodically uses parameters indicating device status information of the smart phone 3113 , that is, an On/Off parameter, and an AP. A BLE Advertisement message including a Connected parameter, an AP Connection Required parameter, a P2P Connection Ready parameter, an OOB parameter, and an Account Required parameter is transmitted.

Meanwhile, when the first device, for example, the OOB device 3111 is powered on, the OOB device 3111 displays parameters indicating device state information of the OOB device 3111, that is, an On/Off parameter and an AP Connected parameter. and transmits a BLE Advertisement message including AP Connection Required parameters, P2P Connection Ready parameters, OOB parameters, and Account Required parameters.

The smart phone 3113 requests a connection with the AP 3115 after the OOB device 3111 is first powered on through the BLE Advertisement message received from the OOB device 3111, and detects requesting account information. do. Accordingly, the smart phone 3113 provides the AP connection information and account information stored in the smart phone 3113 to the OOB device 3111 through device-to-device connection.

The OOB device 3111 is automatically connected to the AP 3115 based on the AP connection information and account information provided from the smart phone 3113, and also registers an account. The OOB device 3111 transmits a BLE Advertisement message after being connected to the AP 3115 . Here, the value of each parameter included in the BLE Advertisement message transmitted from the OOB device 3111 after being connected to the AP 3115 and the BLE transmitted from the OOB device 3111 before being connected to the AP 3115 Each of the parameters included in the advertisement message may have different values, which will be described in detail as follows.

First, the values of each parameter included in the BLE Advertisement message transmitted from the OOB device 3111 before being connected to the AP 3115 are shown in Table 1 below.

Next, the values of each parameter included in the BLE Advertisement message transmitted from the OOB device 3111 after being connected to the AP 3115 are as shown in Table 2 below.

A process of automatically setting up an AP connection based on a discovery packet in a wireless communication system according to an embodiment of the present invention has been described in FIGS. 31A and 31B. Next, referring to FIGS. 32A and 32B, an example of the present invention A process of performing a P2P automatic pairing operation based on a discovery packet in a wireless communication system according to an embodiment will be described.

32A and 32B are diagrams schematically illustrating a process of performing a P2P automatic pairing operation based on a discovery packet in a wireless communication system according to an embodiment of the present invention.

32A and 32B , first, a second device, for example, a smart phone 3213 periodically performs parameters indicating device state information of the smart phone 3213, that is, an On/Off parameter, an AP Connected parameter, and , The BLE Advertisement message including the AP Connection Required parameter, the P2P Connection Ready parameter, the OOB parameter, and the Account Required parameter is transmitted.

On the other hand, when the first device, for example, the OOB device 3211 is powered on, the OOB device 3211 provides parameters indicating device state information of the OOB device 3211, that is, an On/Off parameter and an AP Connected parameter. and transmits a BLE Advertisement message including AP Connection Required parameters, P2P Connection Ready parameters, OOB parameters, and Account Required parameters.

Accordingly, the smart phone 3213 receives the BLE Advertisement message transmitted from the OOB device 3211, and based on the received BLE Advertisement message, the OOB device 3211 communicates with the smart phone 3213 itself and P2P. Detects an attempt to connect. Accordingly, the smart phone 3213 provides the P2P connection information stored in the smart phone 3213 itself to the OOB device 3211 through a device-to-device connection.

The OOB device 3211 that has received the P2P connection information from the smart phone 3213 performs a connection operation with the smart phone 3213 based on the P2P connection information. The OOB device 3211 transmits a BLE Advertisement message after being connected to the smart phone 3213 . Here, the value of each parameter included in the BLE Advertisement message transmitted from the OOB device 3211 after being connected to the smart phone 3213 and transmitted from the OOB device 3211 before being connected to the smart phone 3213 Each of the parameters included in the BLE Advertisement message may have different values, which will be described in detail as follows.

First, the values of each parameter included in the BLE Advertisement message transmitted from the OOB device 3211 before being connected to the smart phone 3213 are shown in Table 3 below.

Next, the values of each parameter included in the BLE Advertisement message transmitted from the OOB device 3211 after being connected to the smart phone 3213 are shown in Table 4 below.

32A and 32B describe a process of performing a P2P automatic pairing operation based on a discovery packet in a wireless communication system according to an embodiment of the present invention. Next, referring to FIG. 33, an embodiment of the present invention will be described. An example of an internal structure of a transmitting device in a wireless communication system according to the present invention will be described.

33 is a diagram schematically illustrating an example of an internal structure of a transmission device in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 33 , the transmission device 3300 may be connected to an external electronic device (not shown separately in FIG. 33 ) using at least one of a communication module, a connector, and an earphone connection jack. The external electronic device is detachable from the transmitting device 3300 and connectable by wire, an earphone, an external speaker, and a universal serial bus (USB, hereinafter referred to as 'USB'). ) memory, charger, cradle/dock, digital media broadcasting (DMB, hereinafter referred to as 'DMB') antenna, mobile payment-related devices, health care devices (blood glucose meter, etc.), game consoles, It may include one of a variety of devices, such as a car navigation device and the like.

In addition, the external electronic device may be a wirelessly connectable Bluetooth communication device, a near field communication (NFC) device, a Wi-Fi direct communication device, a wireless AP, or the like. In addition, the transmitting device 3300 may be connected to a server or another communication device, for example, one of a mobile phone, a smart phone, a tablet PC, a desktop PC, and a server using a wired or wireless connection.

The transmitting device 3300 includes a camera processing unit 3311, an image processing unit 3313, a display unit 3315, a controller 3317, and a radio frequency (RF), hereinafter referred to as 'RF'. ) a processing unit 3319 , a data processing unit 3321 , a memory 3323 , an audio processing unit 3325 , and a key input unit 3327 .

First, the RF processing unit 3319 performs a wireless communication function of the transmission device 3300 . The RF processing unit 3319 includes an RF transmitter for up-converting and amplifying a frequency of a transmitted signal, and an RF receiver for low-noise amplifying and down-converting a received signal.

The data processing unit 3321 includes a transmitter for encoding and modulating the transmitted signal, and a receiver for demodulating and decoding the received signal. That is, the data processing unit 3321 may be composed of a modem (modulator/de-modulator: MODEM, hereinafter referred to as “MODEM”) and a codec (coder/decoder: CODEC, hereinafter referred to as “CODEC”). have. Here, the CODEC includes a data CODEC for processing packet data and the like and an audio CODEC for processing an audio signal such as voice.

The audio processing unit 3325 reproduces the received audio signal output from the audio CODEC of the data processing unit 3321 or transmits the transmission audio signal generated from the microphone to the audio CODEC of the data processing unit 3321 .

The key input unit 3327 includes keys for inputting numeric and character information and function keys for setting various functions.

The memory 3323 may include a program memory, a data memory, and the like. The program memory may store programs for controlling a general operation of the transmitting device 3300 and programs related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention. In addition, the data memory performs a function of temporarily storing data generated while executing the programs.

The memory 3323 includes a read only memory (ROM, hereinafter referred to as 'ROM'), a random access memory (RAM, hereinafter referred to as 'RAM'), and a memory card. (memory card) (for example, secure digital (SD, hereinafter referred to as 'SD') card, memory stick) may be implemented as any data storage device. In addition, the memory 3323 includes a non-volatile memory, a volatile memory, a hard disk drive (HDD, hereinafter referred to as 'HDD') or a solid state drive (SSD, hereinafter 'SSD'). ') and the like.

In addition, the memory 3323 includes applications of various functions, such as navigation, video call, game, and time-based alarm application to the user, and a graphical user interface (GUI) related thereto. Databases or data related to images for providing images, user information, documents, and methods of processing touch input, and background images (menu screen, standby screen, etc.) required to drive the transmitting device 3300 Alternatively, operating programs, images captured by the camera processing unit 3311, and the like may be stored.

In addition, the memory 3323 is a medium readable by a machine (eg, a computer), and the term machine readable medium refers to a medium that provides data to the machine so that the machine can perform a specific function. can be defined. Also, the memory 3323 may include non-volatile media and volatile media. All such media must be tangible so that the instructions carried by the medium can be detected by the machine readable physical mechanism.

The machine readable medium may include, but is not limited to, a floppy disk, a flexible disk, a hard disk, a magnetic tape, a compact disc read-only memory (CD-ROM, hereinafter) "CD-ROM"), optical disks, punch cards, paper tape, RAM, programmable read-only memory (PROM, hereafter referred to as "PROM") ), erasable programmable read-only memory (EPROM, hereinafter referred to as "EPROM"), and flash-erasable programmable read-only memory: flash-EPROM, hereinafter referred to as "flash-EPROM").

The controller 3317 performs a function of controlling the overall operation of the transmission device 3300 . The controller 3317 performs an operation related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention. Here, since the operations related to the operation of transmitting and receiving data based on the sound signal according to an embodiment of the present invention are the same as those described with reference to FIGS. 1 to 32B, a detailed description thereof will be omitted herein.

The camera processing unit 3311 includes a camera sensor that captures image data and converts a photographed optical signal into an electrical signal, and a signal processing unit that converts an analog image signal photographed from the camera sensor into digital data. Here, it is assumed that the camera sensor is a charge coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS, hereinafter referred to as "CMOS") sensor, and the signal processing unit is a digital signal processor (digital signal processor). processor: DSP, hereinafter referred to as "DSP") may be implemented. In addition, the camera sensor and the signal processing unit may be implemented integrally, or may be implemented separately.

The image processing unit 3313 performs image signal processing (ISP, hereinafter referred to as “ISP”) for displaying the image signal output from the camera processing unit 3311 on the display unit 3315, The ISP performs functions such as gamma correction, interpolation, spatial change, image effect, image scale, automatic white balance (AWB), automatic exposure (AE), automatic focus (AF), and the like. Accordingly, the image processing unit 3313 processes the image signal output from the camera processing unit 3311 in units of frames, and outputs the frame image data according to the characteristics and size of the display unit 3315 .

In addition, the image processing unit 3313 includes an image codec, and performs a function of compressing the frame image data displayed on the display unit 3315 in a set manner or restoring the compressed frame image data to the original frame image data. . Here, the image codec may be a joint photographic experts group (JPEG) codec, a moving picture experts group 4 (MPEG4) codec, a Wavelet codec, or the like. It is assumed that the image processing unit 3313 has an on-screen display (OSD) function, and may output on-screen display data according to the size of the displayed screen under the control of the controller 3317 .

The display unit 3315 displays the image signal output from the image processing unit 3313 on a screen, and displays user data output from the control unit 3317 . Here, the display unit 3315 may use a liquid crystal display (LCD, hereinafter referred to as "LCD"), and in this case, the display unit 1815 is an LCD controller, It may be provided with a memory and an LCD display device that can be stored. Here, when the LCD is implemented in a touch screen method, it may operate as an input unit, and in this case, the display unit 3315 may display the same keys as the key input unit 3327 .

When the display unit 3315 is implemented as the touch screen, the display unit 3315 may output an analog signal corresponding to at least one user input input to the user graphic interface to the control unit 3317 .

The display unit 3315 may receive at least one user input through the user's body (eg, a finger including a thumb) or the key input unit 3327 (eg, a stylus pen or an electronic pen).

The display unit 3315 may receive a continuous movement of one touch (eg, a drag input). The display unit 3315 may output an analog signal corresponding to the continuous movement of the input touch to the control unit 3317 .

In one embodiment of the present invention, the touch is not limited to a touch screen, that is, a contact between the display unit 3315 and a finger or the key input unit 3327, and is non-contact (eg, a user input without direct contact with the display unit 3315 ). When the user input means is located within a recognition distance (eg, 1 cm) that can detect the means) may be included. The distance or interval at which the display unit 3315 can recognize the user input means may be changed according to the performance or structure of the transmitting device 3300 , and in particular, the display unit 3315 may be displayed by contact with the user input means. A value (for example, an analog value including a voltage value or a current value) detected by the direct touch event and the hovering event is different so that the direct touch event and the indirect touch event (ie, hovering event) can be detected separately It may be configured to be output.

The display unit 3315 may be implemented as, for example, a resistive method, a capacitive method, an infrared method, an acoustic wave method, or a combination thereof.

In addition, the display unit 3315 includes at least two touch panels capable of sensing a touch or approach of a finger and the key input unit 3327, respectively, so as to receive input by a finger and a key input unit 3327, respectively. can do. At least two touch panels provide different output values to the controller 3317 , and the controller 3317 recognizes values input from the at least two touch screen panels differently from each other, It is possible to distinguish whether the input of is input by a finger or an input by the key input unit 3327 .

The controller 3317 may convert the analog signal input from the display unit 3315 into a digital signal, and the controller 3317 may control the display unit 3315 using the digital signal. For example, the controller 3317 may select or execute a shortcut icon (not shown separately in FIG. 33 ) or an object displayed on the controller 3317 in response to a direct touch event or a hovering event.

The controller 3317 detects a value (eg, a current value, etc.) output through the display unit 3315 to check a hovering interval or distance as well as a user input position, and converts the checked distance value to a digital signal (one For example, it can be converted to Z-coordinate). In addition, the controller 3317 may detect a value (eg, a current value, etc.) output through the display unit 3315 to detect the pressure at which the user input means presses the display unit 3315, and the detected It is also possible to convert the pressure value into a digital signal.

33, the transmitting device 3300 includes the camera processing unit 3311, the image processing unit 3313, the display unit 3315, the controller 3317, and the RF processing unit 3319, The data processing unit 3321 , the memory 3323 , the audio processing unit 3325 , and the key input unit 3327 are illustrated as separate units, but the transmission device 3300 . is the camera processing unit 3311, the image processing unit 3313, the display unit 3315, the controller 3317, the RF processing unit 3319, the data processing unit 3321, the memory ( 3323), the audio processing unit 3325, and at least two of the key input unit 3327 may be implemented in an integrated form.

Alternatively, the transmitting device 3300 may be implemented with one processor.

In FIG. 33, an example of the internal structure of a transmitting device in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 34, a diagram of a receiving device in a wireless communication system according to an embodiment of the present invention An example of the internal structure will be described.

34 is a diagram schematically illustrating an example of an internal structure of a receiving device in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 34 , the receiving device 3400 includes a camera processing unit 3411 , an image processing unit 3413 , a display unit 3415 , a controller 3417 , an RF processing unit 3419 , and a data processing unit 3421 . and a memory 3423 , an audio processing unit 3425 , and a key input unit 3427 .

The camera processing unit 3411, the image processing unit 3413, the display unit 3415, the controller 3417, the RF processing unit 3419, the data processing unit 3421, the memory 3423, the audio processing unit ( 3425 and the key input unit 3427 include the camera processing unit 3311, the image processing unit 3313, the display unit 3315, the controller 3317, the RF processing unit 3319, and the data as described with reference to FIG. Operations similar to those of the processing unit 3321 , the memory 3323 , the audio processing unit 3325 , and the key input unit 3327 are performed, and thus a detailed description thereof will be omitted.

However, the memory 3423 and the controller 3417 will be described in detail as follows.

First, the memory 3423 may include a program memory, a data memory, and the like. The program memory may store programs for controlling a general operation of the reception device 3400 and programs related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention. In addition, the data memory performs a function of temporarily storing data generated while executing the programs.

In addition, the controller 3417 performs a function of controlling the overall operation of the receiving device 3400 . The controller 3417 performs an operation related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention. Here, since the operations related to the operation of transmitting and receiving data based on the sound signal according to an embodiment of the present invention are the same as those described with reference to FIGS. 1 to 32B, a detailed description thereof will be omitted herein.

Meanwhile, in FIG. 34 , the receiving device 3400 includes the camera processing unit 3411 , the image processing unit 3413 , the display unit 3415 , the controller 3417 , the RF processing unit 3419 , and the data processing unit 3421 . ), the memory 3423, the audio processing unit 3425, and the key input unit 3427 are illustrated as separate units, but the receiving device 3400 is the camera processing unit 3411 and , an image processing unit 3413 , a display unit 3415 , a controller 3417 , an RF processing unit 3419 , a data processing unit 3421 , a memory 3423 , an audio processing unit 3425 , and a key input unit ( 3427), at least two of them may be implemented in an integrated form.

Alternatively, the receiving device 3400 may be implemented with one processor.

In FIG. 34, an example of the internal structure of a receiving device in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 35, a transmission device in a wireless communication system according to an embodiment of the present invention is described. Another example of the internal structure will be described.

35 is a diagram schematically illustrating another example of an internal structure of a transmission device in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 35 , the transmission device 3500 includes a transmitter 3511 , a controller 3513 , a receiver 3515 , and a storage unit 3517 .

First, the controller 3513 controls the overall operation of the transmission device 3500 , in particular, controls operations related to transmission and reception of data based on a sound signal according to an embodiment of the present invention. An operation related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention is the same as that described with reference to FIGS. 1 to 32B, and thus a detailed description thereof will be omitted.

The transmitter 3511 transmits various signals and various messages to a receiving device included in the wireless communication system under the control of the controller 3513 . Here, since the various signals and various messages transmitted by the transmitter 3511 are the same as those described with reference to FIGS. 1 to 32B , a detailed description thereof will be omitted.

In addition, the receiver 3515 receives various signals and various messages from a reception device included in the wireless communication system under the control of the controller 3513 . Here, since the various signals and various messages received by the receiver 3515 are the same as those described with reference to FIGS. 1 to 32B, a detailed description thereof will be omitted herein.

The storage unit 3517 relates to an operation related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention performed by the transmitting device 3500 under the control of the controller 3513 . It stores programs and various data.

In addition, the storage unit 3517 stores various signals and various messages received by the receiver 3515 from the receiving device or the like.

Meanwhile, in FIG. 35 , a case in which the transmitting device 3500 is implemented as separate units such as the transmitter 3511 , the controller 3513 , the receiver 3515 , and the storage unit 3517 is illustrated. , the transmitting device 3500 may be implemented in an integrated form in which at least two of the transmitter 3511 , the controller 3513 , the receiver 3515 , and the storage unit 3517 are integrated.

Also, it goes without saying that the transmitting device 3500 may be implemented with one processor.

In FIG. 35, another example of the internal structure of a transmitting device in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 36, a receiving device in a wireless communication system according to an embodiment of the present invention Another example of the internal structure will be described.

36 is a diagram schematically illustrating another example of an internal structure of a receiving device in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 36 , the receiving device 3600 includes a transmitter 3611 , a controller 3613 , a receiver 3615 , and a storage unit 3617 .

First, the controller 3613 controls the overall operation of the reception device 3600 , and in particular, controls operations related to transmission and reception of data based on a sound signal according to an embodiment of the present invention. An operation related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention is the same as that described with reference to FIGS. 1 to 32B, and thus a detailed description thereof will be omitted.

The transmitter 3611 transmits various signals and various messages to a transmission device included in the wireless communication system under the control of the controller 3613 . Here, since the various signals and various messages transmitted by the transmitter 3611 are the same as those described with reference to FIGS. 1 to 32B, a detailed description thereof will be omitted herein.

In addition, the receiver 3615 receives various signals and various messages from a transmission device included in the wireless communication system under the control of the controller 3613 . Here, since the various signals and various messages received by the receiver 3615 are the same as those described with reference to FIGS. 1 to 32B, a detailed description thereof will be omitted.

The storage unit 3617 relates to an operation related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention performed by the reception device 3600 under the control of the controller 3613 . It stores programs and various data.

In addition, the storage unit 3617 stores various signals and various messages received by the receiver 3615 from the transmitting device or the like.

Meanwhile, in FIG. 36 , a case in which the receiving device 3600 is implemented as separate units such as the transmitter 3611 , the controller 3613 , the receiver 3615 , and the storage unit 3617 is illustrated. , the receiving device 3600 may be implemented in an integrated form in which at least two of the transmitter 3611 , the controller 3613 , the receiver 3615 , and the storage unit 3617 are integrated.

Also, of course, the receiving device 3600 may be implemented with one processor.

In FIG. 36, another example of the internal structure of a receiving device in a wireless communication system according to an embodiment of the present invention has been described. Next, with reference to FIG. 37, the inside of an AP in a wireless communication system according to an embodiment of the present invention The structure will be described.

37 is a diagram schematically illustrating an internal structure of an AP in a wireless communication system according to an embodiment of the present invention.

Referring to FIG. 37 , an AP 3700 includes a transmitter 3711 , a controller 3713 , a receiver 3715 , and a storage unit 3717 .

First, the controller 3713 controls the overall operation of the AP 3700, in particular, controls operations related to the operation of transmitting and receiving data based on the sound signal according to the embodiment of the present invention. An operation related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention is the same as that described with reference to FIGS. 1 to 32B, and thus a detailed description thereof will be omitted.

The transmitter 3711 transmits various signals and various messages to a transmitting device and a receiving device included in the wireless communication system under the control of the controller 3713 . Here, since the various signals and various messages transmitted by the transmitter 3711 are the same as those described with reference to FIGS. 1 to 32B, a detailed description thereof will be omitted herein.

In addition, the receiver 3715 receives various signals and various messages from a transmitting device and a receiving device included in the wireless communication system under the control of the controller 3713 . Here, since the various signals and various messages received by the receiver 3715 are the same as those described with reference to FIGS. 1 to 32B, a detailed description thereof will be omitted.

The storage unit 3717 is a program related to an operation related to an operation of transmitting and receiving data based on a sound signal according to an embodiment of the present invention performed by the AP 3700 under the control of the controller 3713 . and various data.

In addition, the storage unit 3717 stores various signals and various messages received by the receiver 3715 from the transmitting device and the receiving device.

Meanwhile, in FIG. 37, the AP 3700 is implemented as separate units such as the transmitter 3711, the controller 3713, the receiver 3715, and the storage unit 3717, Of course, the AP 3700 may be implemented in an integrated form of at least two of the transmitter 3711 , the controller 3713 , the receiver 3715 , and the storage unit 3717 .

Also, of course, the AP 3700 may be implemented with one processor.

Certain aspects of the present invention may also be embodied as computer readable code on a computer readable recording medium. A computer readable recording medium is any data storage device capable of storing data that can be read by a computer system. Examples of the computer readable recording medium include read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tapes, and , floppy disks, optical data storage devices, and carrier waves (such as data transmission over the Internet). The computer readable recording medium may also be distributed over network-connected computer systems, so that the computer readable code is stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for achieving the present invention can be easily interpreted by programmers skilled in the field to which the present invention is applied.

In addition, it will be appreciated that the apparatus and method according to an embodiment of the present invention can be realized in the form of hardware, software, or a combination of hardware and software. Any such software, for example, whether erasable or rewritable, may be stored in a volatile or non-volatile storage device such as a ROM, or a memory such as, for example, RAM, a memory chip, device or integrated circuit. , or an optically or magnetically recordable storage medium such as a CD, DVD, magnetic disk, or magnetic tape, and at the same time may be stored in a machine (eg, computer) readable storage medium. The method according to an embodiment of the present invention may be implemented by a computer or portable terminal including a control unit and a memory, wherein the memory is suitable for storing a program or programs including instructions for implementing embodiments of the present invention You will see that it is an example of a machine-readable storage medium.

Accordingly, the present invention includes a program including code for implementing the apparatus or method described in any claim of the present specification, and a machine (computer, etc.) readable storage medium storing such a program. Also, such a program may be transmitted electronically over any medium, such as a communication signal transmitted over a wired or wireless connection, and the present invention suitably includes the equivalent thereof.

Also, the device according to an embodiment of the present invention may receive and store the program from a program providing device connected by wire or wirelessly. The program providing device may include a program including instructions for the program processing device to perform a preset content protection method, a memory for storing information necessary for the content protection method, and wired or wireless communication with the graphic processing device. It may include a communication unit for performing, and a control unit for automatically transmitting a corresponding program to the transceiver at the request of the graphic processing device or the transceiver.

Meanwhile, although specific embodiments have been described in the detailed description of the present invention, it is needless to say that various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims described below as well as the claims and equivalents.

Claims (32)

A method performed by a transmitting device in a wireless communication system, comprising:
Transmitting a sound packet corresponding to the data;
The sound packet includes at least one sound symbol,
each of the at least one sound symbol comprises at least one sound sub-symbol,
The wireless communication system supports a plurality of sound symbol types, and each of the plurality of sound symbol types is mapped to a preset data value.
According to claim 1,
The method of claim 1, wherein the number of the at least one sound sub-symbol included in the at least one sound symbol is determined based on a data reception distance that is a distance at which the sound packet can be received.
According to claim 1,
and a length of each of the at least one sound sub-symbol included in the at least one sound symbol is determined based on a data reception distance that is a distance at which the sound packet can be received.
According to claim 1,
and the length of the at least one sound symbol is determined based on a data reception distance, which is a distance at which it is possible to receive the sound packet.
5. The method of claim 4,
The data receiving distance includes a first data receiving distance, a second data receiving distance, and a third data receiving distance,
The first data receiving distance is a reference data receiving distance,
The second data receiving distance is less than or equal to the first data receiving distance;
The third data receiving distance exceeds the first data receiving distance;
The length of the sound symbol targeting the first data reception distance is longer than the length of the sound symbol targeting the second data reception distance, and is equal to or shorter than the length of the sound symbol targeting the third data reception distance How to characterize.
According to claim 1,
and the volume of the at least one sound symbol is determined based on a data reception distance, which is a distance at which it is possible to receive the sound packet.
7. The method of claim 6,
The data receiving distance includes a first data receiving distance, a second data receiving distance, and a third data receiving distance,
The first data receiving distance is a reference data receiving distance,
The second data receiving distance is less than or equal to the first data receiving distance;
The third data receiving distance exceeds the first data receiving distance;
The volume of the sound symbol targeting the first data receiving distance is greater than the volume of the sound symbol targeting the second data receiving distance, and equal to or less than the volume of the sound symbol targeting the third data receiving distance A method for a transmitting device to transmit data based on a sound signal in a wireless communication system, characterized in that
According to claim 1,
Further comprising the step of transmitting a message including the device status information of the transmitting device,
The device state information includes a parameter indicating whether the transmission device is being driven, a parameter indicating whether the transmission device is connected to an access point (AP), and a need for the transmission device to be connected to the AP. A parameter indicating whether there is a parameter indicating whether the transmission device requires a peer-to-peer (P2P) connection, and a parameter indicating whether the transmission device is a device driven by first connecting power A method comprising at least one of a parameter and a parameter indicating whether an account is required.
A method performed by a receiving device in a wireless communication system, comprising:
Receiving a sound packet corresponding to the data,
The sound packet includes at least one sound symbol,
each of the at least one sound symbol comprises at least one sound sub-symbol,
The wireless communication system supports a plurality of sound symbol types, and each of the plurality of sound symbol types is mapped to a preset data value.
10. The method of claim 9,
The method of claim 1, wherein the number of the at least one sound sub-symbol included in the at least one sound symbol is determined based on a data reception distance that is a distance at which the sound packet can be received.
10. The method of claim 9,
and a length of each of the at least one sound sub-symbol included in the at least one sound symbol is determined based on a data reception distance that is a distance at which the sound packet can be received.
10. The method of claim 9,
and the length of the at least one sound symbol is determined based on a data reception distance, which is a distance at which it is possible to receive the sound packet.
13. The method of claim 12,
The data receiving distance includes a first data receiving distance, a second data receiving distance, and a third data receiving distance,
The first data receiving distance is a reference data receiving distance,
The second data receiving distance is less than or equal to the first data receiving distance;
The third data receiving distance exceeds the first data receiving distance;
The length of the sound symbol targeting the first data reception distance is longer than the length of the sound symbol targeting the second data reception distance, and is equal to or shorter than the length of the sound symbol targeting the third data reception distance How to characterize.
10. The method of claim 9,
and the volume of the at least one sound symbol is determined based on a data reception distance, which is a distance at which it is possible to receive the sound packet.
15. The method of claim 14,
The data receiving distance includes a first data receiving distance, a second data receiving distance, and a third data receiving distance,
The first data receiving distance is a reference data receiving distance,
The second data receiving distance is less than or equal to the first data receiving distance;
The third data receiving distance exceeds the first data receiving distance;
The volume of the sound symbol targeting the first data receiving distance is greater than the volume of the sound symbol targeting the second data receiving distance, and equal to or less than the volume of the sound symbol targeting the third data receiving distance How to characterize.
10. The method of claim 9,
Further comprising the process of receiving a message including the device status information of the sending device,
The device state information includes a parameter indicating whether the transmission device is being driven, a parameter indicating whether the transmission device is connected to an access point (AP), and a need for the transmission device to be connected to the AP. A parameter indicating whether there is a parameter indicating whether the transmission device requires a peer-to-peer (P2P) connection, and a parameter indicating whether the transmission device is a device driven by first connecting power A method comprising at least one of a parameter and a parameter indicating whether an account is required.
A transmitting device in a wireless communication system, comprising:
a transceiver for transmitting a sound packet corresponding to the data;
The sound packet includes at least one sound symbol,
each of the at least one sound symbol comprises at least one sound sub-symbol,
The wireless communication system supports a plurality of sound symbol types, and each of the plurality of sound symbol types is mapped to a preset data value.
18. The method of claim 17,
The transmitting device of claim 1, wherein the number of at least one sound sub-symbol included in the at least one sound symbol is determined based on a data reception distance that is a distance possible to receive the sound packet.
18. The method of claim 17,
and a length of each of the at least one sound sub-symbol included in the at least one sound symbol is determined based on a data reception distance that is a distance at which the sound packet can be received.
18. The method of claim 17,
and the length of the at least one sound symbol is determined based on a data reception distance, which is a distance possible to receive the sound packet.
21. The method of claim 20,
The data receiving distance includes a first data receiving distance, a second data receiving distance, and a third data receiving distance,
The first data receiving distance is a reference data receiving distance,
The second data receiving distance is less than or equal to the first data receiving distance;
The third data receiving distance exceeds the first data receiving distance;
The length of the sound symbol targeting the first data reception distance is longer than the length of the sound symbol targeting the second data reception distance, and is equal to or shorter than the length of the sound symbol targeting the third data reception distance Transmitting device characterized in that.
18. The method of claim 17,
and a volume of the at least one sound symbol is determined based on a data reception distance, which is a distance at which it is possible to receive the sound packet.
23. The method of claim 22,
The data receiving distance includes a first data receiving distance, a second data receiving distance, and a third data receiving distance,
The first data receiving distance is a reference data receiving distance,
The second data receiving distance is less than or equal to the first data receiving distance;
The third data receiving distance exceeds the first data receiving distance;
The volume of the sound symbol targeting the first data receiving distance is greater than the volume of the sound symbol targeting the second data receiving distance, and equal to or less than the volume of the sound symbol targeting the third data receiving distance Transmitting device characterized in that.
18. The method of claim 17,
The transceiver transmits a message including device status information of the transmitting device,
The device state information includes a parameter indicating whether the transmission device is being driven, a parameter indicating whether the transmission device is connected to an access point (AP), and a need for the transmission device to be connected to the AP. A parameter indicating whether there is a parameter indicating whether the transmission device requires a peer-to-peer (P2P) connection, and a parameter indicating whether the transmission device is a device driven by first connecting power A transmitting device comprising at least one of a parameter and a parameter indicating whether an account is required.
A receiving device in a wireless communication system, comprising:
a transceiver for receiving a sound packet corresponding to the transmitted data;
The sound packet includes at least one sound symbol,
each of the at least one sound symbol comprises at least one sound sub-symbol,
The wireless communication system supports a plurality of sound symbol types, and each of the plurality of sound symbol types is mapped to a preset data value.
26. The method of claim 25,
and the number of the at least one sound sub-symbol included in the at least one sound symbol is determined based on a data reception distance that is a distance at which the sound packet can be received.
26. The method of claim 25,
and a length of each of the at least one sound sub-symbols included in the at least one sound symbol is determined based on a data reception distance that is a distance possible to receive the sound packet.
26. The method of claim 25,
and the length of the at least one sound symbol is determined based on a data reception distance that is a distance possible to receive the sound packet.
29. The method of claim 28,
The data receiving distance includes a first data receiving distance, a second data receiving distance, and a third data receiving distance,
The first data receiving distance is a reference data receiving distance,
The second data receiving distance is less than or equal to the first data receiving distance;
The third data receiving distance exceeds the first data receiving distance;
The length of the sound symbol targeting the first data reception distance is longer than the length of the sound symbol targeting the second data reception distance, and is equal to or shorter than the length of the sound symbol targeting the third data reception distance Receiving device, characterized in that.
26. The method of claim 25,
and a volume of the at least one sound symbol is determined based on a data reception distance, which is a distance at which it is possible to receive the sound packet.
31. The method of claim 30,
The data receiving distance includes a first data receiving distance, a second data receiving distance, and a third data receiving distance,
The first data receiving distance is a reference data receiving distance,
The second data receiving distance is less than or equal to the first data receiving distance;
The third data receiving distance exceeds the first data receiving distance;
The volume of the sound symbol targeting the first data receiving distance is greater than the volume of the sound symbol targeting the second data receiving distance, and equal to or less than the volume of the sound symbol targeting the third data receiving distance Receiving device, characterized in that.
26. The method of claim 25,
The transceiver receives a message including device status information of the transmitting device,
The device state information includes a parameter indicating whether the transmission device is being driven, a parameter indicating whether the transmission device is connected to an access point (AP), and a need for the transmission device to be connected to the AP. A parameter indicating whether there is a parameter indicating whether the transmission device requires a peer-to-peer (P2P) connection, and a parameter indicating whether the transmission device is a device driven by first connecting power A receiving device comprising at least one of a parameter and a parameter indicating whether an account is required.

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